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4.

SPECIFICATION

Item: 

Description

A. Media / Wetted Parts:

Fluids or gases compatible with 316SS and 17-4PH SS

B. Overpressure (Proof):

–1500 psi FS and below; 200% FS value
–3000, 5000 psi; 150% FS value
–7500 psi; 120% FS value

C. Supply Voltage: 

12-32 Vdc

D. Output: 

4 to 20mA dc (two wire, output range: 3.2 to 20.8mA dc)
Response Time: 30 ms (with “0” filter setting)
Resolution: 0.1%F.S., Load resistance: 500ohms max.

E. Accuracy: 

±0.25%F.S. (URL) includes the effects of linearity, hysteresis

and repeatability at 23°C (73°F) reference temperature

F. Temperature Effects

Operating and compensated temperature range (–10 to +60 °C);
±0.02%FS (URL)°C from 23°C reference.

G. Rangeability / Adjustment: 

Zero: –10 to +110% FS 
Span: –10 to + 110% FS

H. Display Accuracy: 

±0.25%F.S. (URL) +1digit at 23°C

I.

Display:

Character height: 10mm, LCD with LED backlight
Pressure / linear display: four LCD digits max.; 3

1

⁄2

digit

Display update: 500 ms

J. Units: 

Pressure Units: psi (2), (1) arbitrary

K. Setting Adjustments:

Internal key switches

• Scaling function: Linear display / output
• Max / Min function: Both the maximum and the mini-

mum readings can be indicated.

• Filter function: User adjustable output damping, select  from 0, 2,4, 8,

and 16 (0 = 30ms, 2 = 60ms, 4 = 120ms etc.)

• Loop check function: User adjustable output for loop /

system check and troubleshooting, 4 to 20mA 

• Key lock function

Содержание GC51

Страница 1: ...378 8281 Fax 203 385 0402 www ashcroft com All sales subject to standard terms and conditions of sale I M011 10159_Rev C_6 03_GC51 Version 6 03 5 11 Installation and Maintenance Instructions for GC51...

Страница 2: ...2...

Страница 3: ...11 MEASUREMENT MODE 16 11 1 Filter Damping 16 11 2 Pressure Display Mode Re scaling in psi units 16 11 3 Linear Display Mode Re scaling in arbitrary user defined units 18 11 4 Min Max Display 21 11 5...

Страница 4: ...4...

Страница 5: ...rges are particularly damaging to pressure transducers if the pipe is originally empty To avoid damaging surges fluid lines should remain full if possible pumps should be brought up to power slowly an...

Страница 6: ...ed B Maximum Minimum Hold Function Captures the maximum and mini mum pressure values as experienced by the GC51 C Digital Filter Function User adjustable damping of the output signal by means of inter...

Страница 7: ...ting and compensated temperature range 10 to 60 C 0 02 FS URL C from 23 C reference G Rangeability Adjustment Zero 10 to 110 FS Span 10 to 110 FS H Display Accuracy 0 25 F S URL 1digit at 23 C I Displ...

Страница 8: ...d by EEPROM nonvolatile memory Q EMC Directive CE Complaince EN61326 1997 A1 1998 A2 2001 R Operating Temperature 10 to 60 C 14 to 140 F S Storage Temperature 20 to 70 C 4 to 158 F T Vibration 5g s 60...

Страница 9: ...o the housing Clear tubing of any debris metal filings etc and un wanted fluids oil etc B If using the panel mounting bracket minimize force applied from the piping and ensure piping is parallel to th...

Страница 10: ...ltage line power lines For optimum results use dedicated conduit for GC51 cable wires If using the Cable Gland termination option must use cable within pre viously noted diameters to maintain environm...

Страница 11: ...strip make positive and negative connections insert wire depth is equal to recommended strip length 0 25 Wiring stripping instructions remove cable jacket 2 3 and strip wires 0 25 Shield drain wire sh...

Страница 12: ...rly tighten sealing grommet be fore applying any tension on the cable the cable gland provides strain re lief and environmental sealing Tighten GC51 cover to maintain environmental rating Connect to p...

Страница 13: ...020 30 Load Limitations 4 20mA Output Only 12 24 545 OPERATING REGION Loop Resistance V LOOP SUPPLY VOLTAGE Vmin 12V 022A RL Includes a 10 safety factor RL RS RW RL Loop Resistance ohms RS Sense Resis...

Страница 14: ...dicator is ON the linear scaling value of an arbitrary unit is indicated on the display Used to switch the setting mode the measure ment mode and the setting item Used to change decrease and select th...

Страница 15: ...ding the MODE button for more than 3 seconds If there is no button operation for 10 minutes in the setting mode it will shift back to the Measurement Mode automatically To go from the Measurement Mode...

Страница 16: ...put The analog output can be adjusted as follows the zero point 4mA and the span point 20mA can each be adjusted from 10 to 110 F S URL This means that although the zero point is typically set at 0 F...

Страница 17: ...n option display will show F and the setting use Up and Down arrow keys for desired setting To move from Setting item 1 to 2 etc press M when desired Setting function has been com pleted hold the M bu...

Страница 18: ...nalog output as shown in 2 of the next page It can display the range of 5 to 105 F S of the linear display span The setting range for the minimum pressure P1 and the maxi mum pressure P2 is 0 to 100 F...

Страница 19: ...SCALE is set as Output span point 20mA but the OFFSET can be reversed to Out put span point 20mA and the FULL SCALE can be reversed to Output zero point 4mA Setting Example 2 Linear Display Mode In t...

Страница 20: ...as two digit Setting item Set OFFSET of linear display as 0 00 ton Setting item Set FULL SCALE of linear display as 5 00 ton Setting item Set output zero point as 0 0 F S 0 00ton of max display span S...

Страница 21: ...nto zero adjustment mode 088 2k Peak Hold Display Pressure Display Mode Pressure Range 100 psi 100 88 2 psi Peak Hold Value Pressure Data Hold Reset Time Peak hold indication start W key is on more th...

Страница 22: ...surement Mode if the pressure is below 15 F S URL FFF will be displayed and if it is more than 115 F S FFF will be displayed B Out of Span Display When the user has adjusted the span of the device thi...

Страница 23: ...he display will return to the measurement mode without completing the zero point adjustment It is important to perform the zero adjustment when the user is certain that the device is at atmospheric pr...

Страница 24: ...n point pressure Analog output 4 to 20mA f 8 a 90 0 a 10 0 010 0 n non The default is the factory default The following table is the setting Example 1 Pressure Display Mode Sec tion 11 2 This applies...

Страница 25: ...75 F S OFFSET 9 10 psi Maximum Max pressure Pressure range 100 0 pressure corresponding to 25 to 100 F S FULL SCALE 10 60 psi Decimal Display after 0 1 2 3 digit 0 point decimal point position Number...

Страница 26: ...essure The values under 25 F S cannot be increased or decreased by key For setting of zero point and span point in the analog output input the percent value over the maximum display span between OFFSE...

Страница 27: ...27 Note Holding the button for more than 3 seconds returns to display mode 14 3 Setting Procedure...

Страница 28: ...setting item Refer to Section 13 2 Setting Procedure The display at the time of loop check start zero point and the analog output 4mA are held 3 If button continues to be pressed the linear display w...

Страница 29: ...the upper part of the display sub strate The analog output can be checked during measurement mode or loop check by applying a probe such as a tester for current measurement onto the check terminal of...

Страница 30: ...otherwise provided the product warranty of this product is as follows Period 12 months after delivery Warrantable defects Defects resulting from the design and manufacture of our company the quality o...

Страница 31: ...31...

Страница 32: ...2011 Ashcroft Inc 250 East Main Street Stratford CT 06614 USA Tel 203 378 8281 Fax 203 385 0402 www ashcroft com All sales subject to standard terms and conditions of sale I M011 10159_Rev C_6 03_GC5...

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