Veris PH Datasheet
PH SERIES
Digitally Controlled Gauge
Pressure Transducer
Three Switch-Selectable
Ranges With Test Mode
VERIS INDUSTRIES
PH
DESCRIPTION
The PH Series pressure transducers are designed for steam, air, gas, and liquid
pressure measurement in all media compatible with 17-4 PH stainless steel. They
utilize a microprocessor controlled sensor proled for exceptional accuracy and
reliability. All models feature three switch-selectable ranges and a “test mode” to
verify wiring and panel input scaling. A pushbutton and digital input terminal is
used to automatically zero the output, and the microprocessor safeguards against
accidental zero adjustment during operation. The eld-selectable output, oering
options of 0-5V, 0–10VDC, or 4-20mA, ensures excellent systems compatibility.
Jumper controlled surge damping is provided on all models to prevent false alarms.
APPLICATIONS
● Chilled and hot water pump monitoring
● HVAC and industrial gas monitoring
● Instrument air pressure
● Hydraulic oil pressure
FEATURES
● Micromachined silicon sensor design...improves overpressure capacity and
prevents failures
● Electronic surge damping for high stability
● Pushbutton zero calibration...no trim pots to adjust, saves installation time
● Switch-selectable pressure ranges...fewer models to order and stock
● Pushbutton and remote zero adjustment...maintain accuracy and prevent
callbacks with automatic zero calibration
Microprocessor controlled signal conditioning (see graph)
● Noise rejection reduces uctuating readings due to noise or turbulence
● Surge damping prevents false alarms by averaging fast peaks
● Output clamping protects controller input from overcurrent/overvoltage
● Test mode overrides the output to full scale...helps to diagnose wiring problems
PRESSURE
SPECIFICATIONS
Product:
Input Power 12 to 30VDC/24VAC
Output 3-wire transmitter; user selec table 4-20mA (clipped and capped)/0-5V/0-10V*
Accurac y ±1% F.S. Combined lineari ty, hys teresis, and repeatability
Surge Damping Electronic; 5-second averaging
Tes t Mod e Overrides output to f ull-scale (20mA, 5V, 10V)
Pressure Ranges:
0-100 psi 25/50/100 psig switch selectable
0-250 psi 62.5/125/250 psig switch sele ctable
0-500 psi 125/250/500 psig switch selectable
0-1000 psi 250/500/1000 psig swi tch selectable
Product Operating Environment -10° to 55°C (-4° to 130°F); 0 to 90% RH non- condensing
Long Term Stability ±0.25% pe r year
Zero Adjust Pushbutton auto-zero and digital input (2-pos terminal blo ck)
Status Indication Dual-color LED: Green = Normal, Red = Overpressure, Flashing Red = Fault
Housing Material White powder-coated steel
Sensor:
Media Compatibility media compatible with 17-4 PH stainless steel
Proof Pressure Max. 2x F.S. range
Burst Pressure Max. 5x F.S. range
Temperature Compensated Range 0° to 50°C (32° to 122°F)
Media Temperature Limits -20° to 85°C (-4° to 185°F); 0 to 90% RH noncondensing
Fittin gs 1/4" NPT male thread, 17-4 PH stainless
*Minimum input voltage for 4-20mA operation:
250 Ω loop (1-5V ) = 12VDC
500 Ω loop (2-10V ) = 15VDC
800.354.8556
+1 503.598.4564
www.veris.com
HQ0001825.B 01131
800.354.8556
+1 503.598.4564
www.veris.com
APPLICATION/WIRING DIAGRAM DIMENSIONAL DRAWING
POWER SOURCE
12 to 30 VDC/24 VAC
DIGITAL CONTROL
Analog Input
0-5V/0-10V
or 4-20mA
Optional
Digital Output
+
-
-
VIN
OUT
COMMON
TEST
C
Zero
Response
A
B
Range
VOLT
mA
0-5
0-10
Output
RANGE
MODEL
07
08
09
10
25
62.5
125
250
A
B
50
125
250
500
SIGNAL CONDITIONING DIAGRAM
Output Clamping
F.S.
Noise Rejection
Slow
Fast
C
100
250
500
1000
Remote
Zero
5.1"
(129 mm)
(115 mm)
4.5"
2.25"
(57 mm)
2.5"
(62 mm)
2.2"
(56 mm)
1/4” NPT male thread,
17-4 PH stainless
PRESSURE
Surge Damping
0
Actual Pressure
Digitally Conditioned Output
TIME
ORDERING INFORMATION
NIST
PH S
N = NIST
X = None
Range
07 = 0-100 psig
08 = 0-250 psig
09 = 0-500 psig
10 = 0-1000 psig
= Standard
Example:
PH X 07 S
ACCESSORIES
Snubbers (AA11), steam siphon (AA13)
AA11
pressure
AA13
HQ0001825.B 01131
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