Dwyer Instruments Digihelic DHC Series Installation And Operating Instructions Manual Download Page 11

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Analog Value - Valley

This object represents the minimum process value measured since the last power

cycle or reset. The unit of measure matches the selected process value. This value

cannot be reset remotely.

Analog Value - Velocity K-Factor

This object represents the Velocity K-Factor setting. When the instrument is used with

a Pitot tube, the manufacturer may specify a K-Factor in order to properly convert

differential pressure to velocity.

Analog Value - Flow Area

This object represents the cross sectional area of the duct where flow is to be

measured. The area is specific in either ft

or m

depending on the flow unit selected.

The adjustment range is 0.13-25.0 ft

(0.012-2.323 m

). The factory setting is 1 ft

(0.093 m

Multi-State Value - Process Mode

This object represents the process or operating mode of the instrument. This setting

determines which process variable is output on the analog channels and measurement

unit of the peak, valley, set points and alarm limits.

Analog Value - Process Output Low

This object represents the process value at which the analog output channels will be

at their minimum value. The unit of this value matches the unit of the selected process

mode.

Analog Value - Process Output High

This object represents the process value at which the analog output channels will be

at their maximum value. The unit of this value matches the unit of the selected process

mode.

Property

Default Value

Property Data Type

Access

Object Identifier

Object Name

Object Type

Preset Value

Status Flags

Event State

Reliability

Out Of Service

Units

AV4

“Valley”

Analog Value

Current Reading

{0,0,0,0}

Normal

No Fault Detected

FALSE

Process Value Unit

BACnet Object Identifier

Character String

BACnet Object Type

Real

BACnet Status Flags

BACnet Event State

BACnet Reliability

Boolean

BACnet Engineering Units

Read

Read/Write

Read

Property

Default Value

Property Data Type

Access

Object Identifier

Object Name

Object Type

Preset Value

Status Flags

Event State

Reliability

Out Of Service

Units

Max Pres Value

Min Pres Value

AV5

“Velocity K-Factor”

Analog Value

1.0

{0,0,0,0}

Normal

No Fault Detected

FALSE

no-units

9.999

0.001

BACnet Object Identifier

Character String

BACnet Object Type

Real

BACnet Status Flags

BACnet Event State

BACnet Reliability

Boolean

BACnet Engineering Units

Real

Read

Read/Write

Read

Read/Write

Read

Property

Default Value

Property Data Type

Access

Object Identifier

Object Name

Object Type

Preset Value

Status Flags

Event State

Reliability

Out Of Service

Units

Max Pres Value

Min Pres Value

AV6

“Flow Area”

Analog Value

1.0 (0.093)

{0,0,0,0}

Normal

No Fault Detected

FALSE

square-feet

(square-meters)

25.0 (2.323)

0.13 (0.093)

BACnet Object Identifier

Character String

BACnet Object Type

Real

BACnet Status Flags

BACnet Event State

BACnet Reliability

Boolean

BACnet Engineering Units

Real

Read

Read/Write

Read

Read/Write

Read

Property

Default Value

Property Data Type

Access

Object Identifier

Object Name

Object Type

Preset Value

Status Flags

Event State

Reliability

Out Of Service

Number of States

State Text

MSV1

“Process Mode”

Multi-State Value

{0,0,0,0}

Normal

No Fault Detected

FALSE

“Pressure”, “Velocity”,

“Flow”

BACnet Object Identifier

Character String

BACnet Object Type

Unsigned

BACnet Status Flags

BACnet Event State

BACnet Reliability

Boolean

Unsigned

BACnet Array[N] of

Character String

Read

Read/Write

Read

Read/Write

Read

Property

Default Value

Property Data Type

Access

Object Identifier

Object Name

Object Type

Preset Value

Status Flags

Event State

Reliability

Out Of Service

Units

Max Pres Value

Min Pres Value

AV7

“Process Output Low”

Analog Value

Model Specific

{0,0,0,0}

Normal

No Fault Detected

FALSE

Mode Specific

Model Specific

BACnet Object Identifier

Character String

BACnet Object Type

Real

BACnet Status Flags

BACnet Event State

BACnet Reliability

Boolean

BACnet Engineering Units

Real

Read

Read/Write

Read

Read/Write

Read

Property

Default Value

Property Data Type

Access

Object Identifier

Object Name

Object Type

Preset Value

Status Flags

Event State

Reliability

Out Of Service

Units

Max Pres Value

Min Pres Value

AV8

“Process Output High”

Analog Value

Model Specific

{0,0,0,0}

Normal

No Fault Detected

FALSE

Mode Specific

Model Specific

BACnet Object Identifier

Character String

BACnet Object Type

Real

BACnet Status Flags

BACnet Event State

BACnet Reliability

Boolean

BACnet Engineering Units

Real

Read

Read/Write

Read

Read/Write

Read

www.calcert.com

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1.800.544.2843

Summary of Contents for Digihelic DHC Series

Page 1: ...this device in a dusty environment install an optional A 331 filter vent plug into the vented port to keep interior clean Differential Pressure Connect tubing from the higher source to the HIGH PRESSURE port indicated with a sign and from the lower source to the LOW PRESSURE port indicated with a sign SPECIFICATIONS Service Air and non combustible compatible gases Wetted Materials Consult factory ...

Page 2: ...urface Provide three 3 16 diameter holes in panel on a 4 1 8 diameter bolt circle Cut the opening for the terminal block as shown in Figures 2 and 4 2 If the rear pressure connections are to be used also provide 1 2 diameter holes as shown in Figures 2 and 4 3 Insert 6 32 machine screws from rear of mounting surface threading them into tapped holes on back of transmitter and tighten 3 HOLES FOR 6 ...

Page 3: ...C 1 1 2 38 10 3 4 19 05 7 8 22 23 1 25 40 53 64 20 96 1 25 40 2X Ø5 8 15 88 FOR PRESSURE CONNECTION DRILL TEMPLATE NEEDS TO BE USED FROM PANEL FRONT Figure 4 Surface mounting drill template www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 4: ...www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 5: ...ire in accordance with an equivalent national standard or code Use copper conductors rated for 60 C All terminals are rated CLASS 2 CAUTION Function 15 Pin Connector Terminal Cable Color 12 28 VAC VDC Power 12 28 VAC VDC Power 4 20 mA Output Signal 0 10 V Output Signal External Input Signal Signal Common Relay 1 N O Relay 1 Common Relay 1 N C Relay 2 N O Relay 2 Common Relay 2 N C RS 485 B RS 485 ...

Page 6: ...voltage output Set POL to the desired display reading for 4 mA output Set POH to the desired display reading for 20 mA output POL can be greater than POH In this situation the analog outputs are reverse acting KFAC SUB MENU The K Factor sub menu becomes accessible if the instrument mode is set to Velocity or Flow When the DHC is used with a Pitot tube the manufacturer may specify a K Factor The ad...

Page 7: ...2 Action rLy1 rLy2 Relay 1 Source Relay 2 Source SUB MENUS OFF Relay not used SP1 Set Point 1 SP2 Set Point 2 AL Either Alarm ALHI High Alarm ALLO Low Alarm EXT External Input The selected source determines when the relay is active If the source is active the relay will be active r1At r2At Relay 1 Action Relay 2 Action SUB MENUS DIR Direct Acting CLSE Close on Active REV Reverse Acting OPEN Open o...

Page 8: ...ue Press and hold the ENTER button until the process value is cleared The display will show a dash in each digit starting with the left most position After 4 dashes have been displayed the process value will be displayed and the new span will be applied If the span cannot be applied a FAiL message will be displayed This error could occur if the applied pressure is too low or too high rSt Reset Fac...

Page 9: ...log Value Analog Value Analog Value Analog Value Analog Value Multi State Value Multi State Value Multi State Value Multi State Value Multi State Value Multi State Value Multi State Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Binary Value Positive Integer Value Positive Integer Value Positive I...

Page 10: ...BACnet Services Supported BACnet Object Types Supported BACnet Array Unsigned BACnet Segmentation Unsigned Unsigned Unsigned Unsigned BACnet Address Binding Unsigned BACnet Array N of BACnet Property Identifier Character String Read Write Read Write Read Read Read Read Read Read Read Read Write Read Write Read Read Read Read Read Read Read Read Read Read Write Read Read Read Read Read Property Def...

Page 11: ...tus Flags BACnet Event State BACnet Reliability Boolean BACnet Engineering Units Real Real Read Read Read Read Write Read Read Read Read Write Read Read Read Property Default Value Property Data Type Access Object Identifier Object Name Object Type Preset Value Status Flags Event State Reliability Out Of Service Units Max Pres Value Min Pres Value AV6 Flow Area Analog Value 1 0 0 093 0 0 0 0 Norma...

Page 12: ...tatus Flags Event State Reliability Out Of Service Units Max Pres Value Min Pres Value AV9 Set Point 1 Trigger Value Analog Value Model Specific 0 0 0 0 Normal No Fault Detected FALSE Mode Specific Model Specific Model Specific BACnet Object Identifier Character String BACnet Object Type Real BACnet Status Flags BACnet Event State BACnet Reliability Boolean BACnet Engineering Units Real Real Read ...

Page 13: ...ject Identifier Object Name Object Type Preset Value Status Flags Event State Reliability Out Of Service BV5 Enable Alarm High Limit Binary Value Active 0 0 0 0 Normal No Fault Detected FALSE BACnet Object Identifier Character String BACnet Object Type BACnet Binary PV BACnet Status Flags BACnet Event State BACnet Reliability Boolean Read Read Read Read Write Read Read Read Read Write Property Def...

Page 14: ...perty Data Type Access Object Identifier Object Name Object Type Preset Value Status Flags Event State Reliability Out Of Service Number of States State Text MSV3 Relay 1 Source Multi State Value 2 0 0 0 0 Normal No Fault Detected FALSE 7 Off Set Point 1 Set Point 2 Any Alarm Alarm High LImit Alarm Low Limit External Input BACnet Object Identifier Character String BACnet Object Type Unsigned BACne...

Page 15: ...ad Read Read Write Read Read Read Read Write Property Default Value Property Data Type Access Object Identifier Object Name Object Type Preset Value Status Flags Event State Reliability Out Of Service Units Max Pres Value Min Pres Value PIV2 External Input Activation Delay Positive Integer Value 0 0 0 0 0 Normal No Fault Detected FALSE Mode Specific 3600 0 BACnet Object Identifier Character String...

Page 16: ...able Set Point 2 Trigger Value Set Point 2 Reset Value Enable Alarm High Limit High Alarm Limit Enable Alarm Low Limit Low Alarm Limit Manual Alarm Reset Power Up Alarm Inhibit Alarm Delay Alarm High Limit Status Alarm Low Limit Status Relay 1 Source Relay 1 Action Relay 2 Source Relay 2 Action Enable External Input External Input Type External Input Activation Delay Damping Time String 32 16bit i...

Page 17: ...pted and may void warranty WARRANTY RETURN Refer to Terms and Conditions of Sale in our catalog and on our website Contact customer service to receive a Return Materials Authorization RMA number before shipping the product back for repair Be sure to include a brief description of the problem plus any additional application notes Byte Order Address Range 32bit Values 16bit Values Register 1 Registe...

Page 18: ...s MODEL PRESSURE RANGE 3s HOME SCREEN MODE PRESSURE PRESS AND HOLD ENTER BUTTON PRESS SPAL BUTTON PRESS UP BUTTON PRESS DOWN BUTTON PRESS RST BUTTON PIN CORRECT NO NEXT DIGIT MOVE CARON OR CHANGE DIGIT OR PIN ENABLED YES MAIN MENU SPAL MENU OR 3s MENU MAPS www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 19: ...ARM MENU RELAY MENU EXTERNAL INPUT MENU DISPLAY MENU CONNECTION MENU CALIBRATION MENU HOME SCREEN NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD 0000 DISABLED CONFIGURE PIN www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 20: ...OPERATION MENU MAIN MENU OPERATION MODE MEASUREMENT UNIT OPERATION MENU CONTINUED www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 21: ...VE CARON OR CHANGE DIGIT SAVE DISCARD OPERATION MENU CONTINUED FLOW OUTPUT HIGH FLOW OUTPUT LOW DUCT AREA VELOCITY OUTPUT HIGH VELOCITY OUTPUT LOW VELOCITY K FACTOR PRESSURE OUTPUT HIGH PRESSURE OUTPUT LOW AVAILABLE WHEN MODE PRESSURE AVAILABLE WHEN MODE VELOCITY AVAILABLE WHEN MODE FLOW AVAILABLE WHEN MODE VELOCITY OR FLOW www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 22: ...OPERATION MENU CONTINUED VOLTAGE OUTPUT RANGE www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 23: ...SET POINT 1 ENABLE SET POINT 2 ENABLE MAIN MENU SET POINT MENU www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 24: ...ENABLE ALARM LOW LIMIT ENABLE MAIN MENU ALARM RESET TYPE ALARM INHIBIT ENABLE ALARM DELAY NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD ALARM MENU www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 25: ...MAIN MENU RELAY MENU RELAY 2 SOURCE RELAY 1 SOURCE RELAY MENU CONTINUED www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 26: ... OR EXT RELAY MENU CONTINUED RELAY 1 ACTION IF RELAY 1 SOURCE AL ALHI OR ALLO RELAY 2 ACTION IF RELAY 2 SOURCE SP1 SP2 OR EXT RELAY 2 ACTION IF RELAY 2 SOURCE AL ALHI OR ALLO www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 27: ...NAL INPUT MENU EXTERNAL INPUT ENABLE EXTERNAL INPUT TYPE MAIN MENU EXTERNAL INPUT DELAY NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 28: ...SS VALUE PROCESS DISPLAY MAIN MENU DAMPING TIME NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD VALLEY PROCESS VALUE RESET PEAK VALUE RESET VALLEY VALUE www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 29: ...ELECTION DEVICE ADDRESS MAIN MENU NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD CONNECTION MENU SERIAL BAUD RATE CONNECTION MENU CONTINUED www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 30: ...OPERATION MENU CONTINUED SERIAL PARITY AVAILABLE WHEN PROTOCOL SELECTION MODBUS AND SERIAL BAUD RATE AUTO SERIAL STOP BITS www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 31: ...ENU 1sec 1sec 1sec 1sec SPAN CALIBRATION 1sec 1sec 1sec 1sec DEVICE REBOOTS AFTER 5 SECONDS RESTORE FACTORY SETTINGS SERIAL NUMBER DISPLAY PART 1 SERIAL NUMBER DISPLAY PART 2 www calcert com sales calcert com 1 800 544 2843 0 5 10 15 20 25 30 ...

Page 32: ...ARD NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD NEXT DIGIT MOVE CARON OR CHANGE DIGIT SAVE DISCARD ALARM LOW LIMIT ALARM HIGH LIMIT AVAILABLE WHEN ALARM LOW LIMIT ENABLE ON AVAILABLE WHEN ALARM HIGH LIMIT ENABLE ON Printed in U S A 6 22 FR 444618 00 Copyright 2022 Dwyer Instruments Inc DWYER INSTRUMENTS INC P O BOX 373 MICHIGAN CITY INDIANA 46360 U S A Phone 219 879 8000 Fax 219 872 9057 ww...

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