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RDD100 User Guide 

 

 

 

www.honeywell.com                                                                                                                                                             7

 

Sequence #3: 

If both RDD100 and transducer are operating normally before an over/under-range condition is detected, the 
RDD100 will continue to display the valid last reading prior to the error condition. The error LED will not be lit. 
 

POWER REQUIREMENTS 

 

4.1 

Voltage 

 

 

 

                                 

12 ± 3 VDC

 

 
4.2 

Current  

4.2.1 Operating  

                                                         

….170 mA (Transducer and RDD100 together) 

 

4.2.2 @ Start-Up 

 

 

                                  .350 mA 

 
4.3 

Power Connection

   

                                                2.1 x 5.5 x 10 mm (I.D. x O.D. x length) 

 

OPERATING ENVIRONMENT 
 

5.1 

Operating Temp Range

 

 

                                    

-20ºC to +60ºC

 

5.2 

Storage Temp Range

 

 

                                    

-25ºC to +85ºC

 

5.3 

Relative Humidity

 

 

 

                                    

0% to 90%, non-condensing

 

 

DIMENSIONS 
 

6.1 

Overall

 

 

 

                                                

3.8 in. W x 2.0in.H

 

6.2 

Panel Cutout Dimensions

   

                                    

3.58 in. W x 1.77in.H

 

6.3 

Depth Behind Panel

                                                        

….

4.5 inches (not including connectors and cables) 

 
RDD100 Connections 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

(1) This cable allows a personal computer, with suitable software, to communicate through the RDD-100 to the transducer.   
Data can be logged and transducer parameters set/reviewed.  Length of cable can be chosen when the RDD100 is ordered.   
(At the PC, USB to RS-232 converters can be used.) 
 
(2) Separate cables are available for transducers with Metal or Plastic electrical connectors.   
Standard cable length is 6 feet (1.8 m).  Connectors may be purchased from Honeywell to construct custom-length cables.   
Due to RS-232 limitations, recommended maximum length is 50 ft (15 m). 
 
(3) 12 VDC plug is 2.1 x 5.5 x 10 mm (I.D. x O.D. x length) 
Center pin may be either positive or negative polarity.

 

 

RDD100

Wall-

mounted

12V DC

supply

Honeywell RS-232

Pressure Transducer

Personal Computer

(1) 

9-pin cable, 6 or 10 ft.

(2) 

6 ft. transducer cable

Figure 1, RDD100 Connections

(1) This cable allows a personal computer, with suitable software, to communicate through the
RDD-100 to the transducer. Data can be logged and transducer parameters set/reviewed.
Length of cable can be chosen when RDD100 is ordered.
(At the PC, USB to RS-232 converters can be used.)

(2) Separate cables are available for transducers with Metal or Plastic electrical connectors.
Standard cable length is 6 feet (1.8 m). Connectors may be purchased from Honeywell to construct
custom-length cables.
Due to RS-232 limitations, recommended maximum length is 50 ft (15 m).

1/A
2/B
4/D
5/E

1 2 4 5

(3)

2 3 5

C
O
M

S
e
r

i

a

l

(3) 12 VDC plug is 2.5 x 5.5 x 10 mm (I.D. x O.D. x length)
Center pin may be either positive or negative polarity.

Содержание RDD100

Страница 1: ...Honeywell Pressure Sensor Products RDD100 Remote Digital Display User Manual ...

Страница 2: ...ed Parameters 3 Operation 3 1 Start Up Messages 3 2 Error Indications 3 2 1 Transducer Not Connected 3 2 2 Incorrect Baud Rate 3 2 3 Not Set Up To Continuously Transmit 3 2 4 Wrong Polarity Of DC Power 3 2 5 Transducer Disconnected While Transmitting 3 2 6 Over Under Ranged Transducer Indications 4 Power Requirements 4 1 Voltage 4 2 Current 4 3 Power Connection 5 Operating Environment 5 1 Operatin...

Страница 3: ...dependent upon the pressure display units selected Although many of the supported transducers also have a 0 5V analog output only the digital output is used by the RDD100 as it provides better resolution and accuracy Any of 16 different pressure display units may be selected for use with the RDD100 A list of available pressure units is shown in section 2 4 below A more complete description of the ...

Страница 4: ...te for the transducer is shown below The commands below all use a broadcast address 99 to allow them to operate correctly even if the transducer address has been changed from the factory default setting which is address 01 With the PC and transducer operating at the baud rate found to return a non garbled start up message Type 99we cr Carriage Return Resp 99WE Command Echo Type 99bp n9600 cr Resp ...

Страница 5: ...was in the original psi scale For example when a 10 psia device is switched to DU LCOM the full scale digital pressure output will be 60 000 instead of 10 000 Also a 500 psi device will output full scale 600 00 instead of 500 00 PFS generally provides the highest readout resolution available when using the RDD100 readout 2 5 Continuous Transmit Mode Type 99we cr Resp 99WE Command Echo Type 99mo p2...

Страница 6: ... Power The RDD100 is equipped with the reverse polarity protection diodes at its power input The instrument will operate with either polarity 3 2 5 Transducer Disconnected While Transmitting If the transducer is disconnected while transmitting the last reading received will remain on the display and the error LED will light indicating that no further updates are being made Reestablishing connectio...

Страница 7: ...ed 2 Separate cables are available for transducers with Metal or Plastic electrical connectors Standard cable length is 6 feet 1 8 m Connectors may be purchased from Honeywell to construct custom length cables Due to RS 232 limitations recommended maximum length is 50 ft 15 m 3 12 VDC plug is 2 1 x 5 5 x 10 mm I D x O D x length Center pin may be either positive or negative polarity RDD100 Wall mo...

Страница 8: ...RDD100 User Guide 8 www honeywell com Honeywell International 12001 State Highway 55 Plymouth MN 55441 Tel 1 800 323 8295 www honeywellmps com ADS 14124 December 2012 ...

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