Ashcroft T2, G2 Operating Manual

3 (A)
2 (C)
1 (B)
3
2
1
2 ELECTRICAL TERMINATIONS AND WIRING
1.76
Wire
Length
.95
(45)
(24)
1.06
(27)
Connection - PIN
1
2
3
V out
Vs
-
Vs
+
Pin 1
Pin 2
Pin 3
Pin 4
KEY
G
2 ELECTRICAL TERMINATIONS AND WIRING
G
2 ELECTRICAL TERMINATIONS AND WIRING
T
EUTSCH DT SERIES DT04-3P
D
Pin Voltage 4-20mA Mating
o. Output Output* Cable Color
N
1 (B) Common V Black
(C) Output V
2
(A) V + V
3
* Use either V- termination on G2 with
4-20mA output
DEUTSCH DTM SERIES DTM04-3P
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 V + V + Red 2 Common V Black 3 Output V White
* Use either V- termination on G2 with
4-20mA output
SHIELDED CABLE, PVC JACKET, 24AWG LEADS
Wire Voltage 4-20mA
Color Output Output*
Red V + V + Black Common V – White Output V –
Bare** Shield Shield
* Use either V- termination on G2 with 4-20mA output
M12 ELECTRICAL TERMINATION FOR G2 (EW), (EO), (E2), (E1)
Mates to optional Hirschmann connector Part 933 172-100 or equal
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 V + V + Red 2 Case Grd. Case Grd. Green 3 Common V – Black 4 Output V – White
Drain Wire Drain Wire
IP67 Ingress rating
IP67 Ingress rating
W + R
hite
ed
LYING LEADS 18AWG
F
ire Voltage 4-20mA
W
olor Output Output*
C
ed V + V +
R BlackCommon V – V – White Output
DIN 43650 FORM C (EN 175301-803-C) ELECTRICAL TERMINATION (DC), (N1), (N2), (N3), (N9)
ates to Hirschmann P/N: GSSNR 300,
M Ashcroft P/N 300A126-01
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 V + V + Red 2 Common V Black 3 Output White
P67 Ingress rating
I
IP65 Ingress rating
T2 ELECTRICAL TERMINATIONS AND WIRING
M12 ELECTRICAL TERMINATION FOR T2 (EW), (EO), (E2), (E1)
Mates to optional Hirschmann connector Part 933 172-100 or equal
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 V + V + Red 2 Output None White 3 Case Gnd. Case Gnd. Green 4 Common Common Black
IP65 Ingress rating
IN 43650 FORM A (EN 175301-803-A)
D ELECTRICAL TERMINATION
DN), (DO), (D2), (D1)
(
Mates to optional Hirschmann connector GDM 3009 or equal
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 V + V + Red
Common Common Black
2 3 Output None White
GND Case Gnd. Case Gnd. Green
4-PIN BENDIX STYLE ELECTRICAL TERMINATION (B4), (H1), (L1), (P2)
Mates to optional Amphenol Bendix connector PTO6A-8-
-SR or equal
4
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
A V + V + Red B Output None White C Case Gnd. Case Gnd. Green D Common Common Black
SHIELDED CABLE, PVC JACKET, 24 AWG LEADS, TERMINATION (F2), (P1)
Bare** Drain Wire Drain Wire
** Where shielded wiring is being used; Connect the drain wire to the guard
terminal on the read out device or measuring instrument if available. In all other cases connect to the ground of the power supply negative terminal.
© 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. All rights reserved. I&M011-10129
IP65 Ingress rating
IP65 Ingress rating
Wire Voltage 4-20mA
Color Output Output
Red V + V + White Output None Black Common Common Green Case Gnd. Case Gnd.
IP65 Ingress rating
03/2011 Rev. 10/2012, 07/13
G2 & T2 PRESSURE TRANSMITTER
INSTRUCTION SHEET
WARNING! READ

1. GENERAL:
A failure resulting in injury or damage may be caused by excessive overpressure, excessive vi­bration or pressure pulsation, excessive instrument temperature, corrosion of the pressure containing parts, or other misuse. Consult Ashcroft Inc., Strat­ford, Connecticut, USA before installing if there are any questions or concerns.
2. OVERPRESSURE:
Pressure spikes in excess of the rated overpressure capability of the transducer may cause irreversible electrical and/or mechanical damage to the pres­sure measuring and containing elements. Fluid hammer and surges can destroy any pressure transducer and must always be avoided. A pressure snubber should be installed to eliminate the damag­ing hammer effects. Fluid hammer occurs when a liq­uid flow is suddenly stopped, as with quick closing solenoid valves. Surges occur when flow is suddenly begun, as when a pump is turned on at full power or a valve is quickly opened. Liquid surges 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, and valves opened slowly. To avoid damage from both fluid hammer and surges, a surge cham­ber should be installed.
Symptoms of fluid hammer and surge's damaging effects:
• Pressure transducer exhibits an output at zero pressure (large zero offset).
• Pressure transducer output remains constant re­gardless of pressure
• In severe cases, there will be no output.
FREEZING:
Prohibit freezing of media in pressure port. Unit should be drained (mount in vertical position with electrical termination upward) to prevent possible overpressure damage from frozen media.
* Use either V- termination on G2 with 4-20mA output
BEFORE INSTALLATION
16 8
3. STATIC ELECTRICAL CHARGES:
10
40
9 (min)
36 (max)
Loop Supply Voltage (Vdc) [LSV]
P
(4-20mA ONLY)
Loop Resistance (R
L
-Ohms)
1400
1200
3
2
1
Any electrical device may be susceptible to damage when exposed to static electrical charges. To avoid damage to the transducer observe the following:
• Ground the body of the transducer BEFORE mak­ing any electrical connections.
• When disconnecting, remove the ground LAST!
Note: The shield and drain wire in the cable (if sup­plied) is not connected to the transducer body, and is not a suitable ground.
DESCRIPTION
The Ashcroft Model G2 and T2 pressure transducers are high performance instruments intended for use in industrial applications where the process media is com­patible with the 17-4PH stainless steel sensor material and the 304 SS process connection.
MECHANICAL INSTALLATION Environmental
The G2 and T2 transducers can be stored and used within the temperature limits of –40°C to 125°C (-40°F to 257°F). Ingress protection ratings of the units are de­pendent on the electrical termination specified. Refer to the wiring diagrams on the reverse for the IP rating of the unit which is being installed.
Mounting
The G2 and T2 transducers require no special mount­ing hardware and can be mounted in any orientation with negligible position error. Although the units can withstand considerable vibration without damage or significant output effects, it is always good practice to mount the transducer where there is minimum vibra­tion. For units with NPT type pressure fittings apply sealing tape or an equivalent sealant to the threads before installing. When instal-ling or removing the unit apply a wrench to the hex wrench flats, located above the pressure fitting. DO NOT tighten by using a pipe wrench on the hous­ing. A 27mm (1
1
16˝) wrench can be used on the wrench flats of the hex. For G2 models with detachable electri­cal connectors a 6 point deep socket can also be used to install the unit.
lectro-Magnetic Interference
E
The circuitry of the G2 and T2 transducers is designed to minimize the effect of electromagnetic and radio fre­quency interference. To minimize susceptibility to noise, avoid running the termination wiring in a conduit which contains high current AC power cables. Where possible avoid running the termination wiring near inductive equipment.
Field Adjustments
The G2 and T2 transducers are precisely calibrated and temperature compensated at the factory to ensure long and stable performance. There are no field acces­sible adjustments on the G2 or T2 transducers.
ELECTRICAL INSTALLATION
Please refer to the reverse of this page for power sup­ply requirements and for appropriate wiring protocol based on the particular output signal and electrical terminal.
G2 & T2 ELECTRICAL INSTALLATION
Wiring Diagrams (see following pages for further detail)
G2 & T2 ELECTRICAL INSTALLATION (cont.)
Power Supply Requirements:
Output Signal Min Supply Max Supply
Ratiometric* 4.5Vdc 5.5Vdc (0.5V to 4.5V) 0-5Vdc 9Vdc 36Vdc 1-5Vdc 9Vdc 36Vdc 1-6Vdc 9Vdc 36Vdc 0-10V 14Vdc 36Vdc
0.5-4.5Vdc 9Vdc 36Vdc 4-20mA** 9Vdc 36Vdc
*0.5Vdc-4.5Vdc output is ratiometric to the
nominal 5Vdc supply
**For transmitters with 4-20mA output signal,
the minimum voltage at the terminals is 9Vdc. However, the minimum supply voltage should be calculated using the adjacent graph and formula.
Power Supply Voltage vs Loop Resistance
To determine minimum loop supply voltage:
LSV(min)=9(V)+[.022(A)*RL]
Where:
LSV= Loop Supply Voltage (Vdc) RL= RS+ RW (ohms) RL= Loop Resistance (ohms) RS= Sense Resistance (ohms) [Measuring Instrument] RW= Wiring Resistance (ohms)
2 ELECTRICAL TERMINATIONS AND WIRING
G
3-PIN DELPHI (PACKARD) METRI-PACK 150 SERIES
Mates to Optional Metri-Pack connector 12065287
in Voltage 4-20mA Mating
P
o. Output Output* Cable Color
N
Common V
A B V + V + Red
Output V
C
Use either V- termination on G2 with 4-20mA output
*
HIRSCHMANN G SERIES
Mates to Optional Hirschmann G4W1F connector, or equal
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 V + V + Red 2 Common V Black 3 Output V White 4 Case Gnd. Case Gnd. Green
* Use either V- termination on G2 with 4-20mA output
AMP SUPERSEAL
Pin Voltage 4-20mA Mating No. Output Output* Cable Color
1 Common V Black 2 Output V White 3 V + V + Red
* Use either V- termination on G2 with 4-20mA output
IP67 Ingress rating
IP67 Ingress rating
B
W
lack
hite
2 3 4 5