VRVP2012- Gauge Pressure Transmitter

VRVP2013- Absolute Pressure Transmitter

Thepressure transmitter VRVP2012/3 is suitable to measure liquid, gas, or steamflow as well as liquid level, density and pressure. VRVP2012/3 outputs a 4 to20 mA DC signal corresponding to the measured pressure. The key featuresinclude quick response, remote set-up using communications, self-diagnosticsand optional status output for pressure high/low alarm.

STANDARD SPECIFICATIONS

1 PERFORMANCE SPECIFICATIONS

Reference Accuracy of Calibrated Span (includesterminal-based linearity, hysteresis, and repeatability)

± 0.075%;

If TD>10 (TD=URL/SPAN):

±(0.0075×TD)%;

Ambient Temperature Effects

Overpressure Effects

±0.075%×Span

Stability

Power Supply Effects:

±0.001% /10V (12～42V DC)

2 FUNCTIONAL SPECIFICATIONS

Span and Range Limits (VRVP2012)

Span and Range Limits (VRVP2013)

External Zero Adjustment

External zero is continuously adjustable with 0.01%incremental resolution of span. Re-range can be done locally using the rangesetting switch.

Mounting Position Effects

Rotation in diaphragm plane has no effect. Tilting up to90 degree will cause zero shift up to 0.4 kPa which can be corrected by thezero adjustment.

Output

Two wire 4 to 20 mA DC output with digitalcommunications, linear or square root programmable.  HART FSK protocol is option superimposed onthe 4 to 20 mA signal. Output range: 3.9 mA to 20.5 mA

Failure Alarm (the mode can be selected)

Low Mode (min): 3.7 mA, High Mode (max): 21 mA

No Mode (hold): Keep the effective value before fault.The standard setting of failure alarm is High Mode.

Response Time

Theamplifier damping constant is 0.1 sec; The sensor damping constant is 0.1~1.6sec, it depends on the range and range compression ratio. Amplifier dampingtime constant is adjustable from 0 to 60 sec by software and added to responsetime.

Up Time                               < 15s

Ambient Temperature Limits: -40 to 85°C

-20 to 65°Cwith LCD display or fluorine rubber sealing

Storage and Transportation Temperature Limits

-50 to 85°C, -40 to 85°Cwith LCD display

Working PressureLimits (Silicone oil)

From vacuum toupper range limits

Overload Pressure Limits

Electromagnetic Compatibility (EMC)

Look the EMC Performance Table

3 INSTALL

Supply & Load Requirements

24 V DC supply, R≤(Us-12V)/Imax kΩ, Imax=23 mA. Maximumvoltage limited: 42VDC, Minimum voltage limited: 12VDC, 15VDC（withLCD display）

230Ω to 600Ω for digital communication

Electrical Connection

The electrical connection is made via cable entryM20x1.5.The screw terminals are suitable for wire cross-sections up to 2.5mm².

Process Connection

Default Process Connection：Flange withfixing thread 7/16-20 UNF and 1/4-18 NPT female thread on both sides.

4 PHYSICAL SPECIFICATIONS

IsolatingDiaphragm：316L stainless steel/Hastelloy C

Process Connector： 316 stainlesssteel

Fill fluid：            Silicone oil

Amplifier Housing：  Aluminum with epoxy resin coat

Housing Gasket：   Perbunan（NBR）

Name plate and tag：304 stainless steel

Weight：           3.3kg

Degrees of Protection: IP67

EMC Performance Table

Note：（1）Performancelevel A description: The technical specifications within the limits of normalperformance.

      （2）Performancelevel B description: Temporary reduction or loss of functionality orperformance, it can restore itself. The actual operating conditions, storage,and data will not be changed.

DIMENSIONS                                                                 Unit : mm

HorizontalImpulse Piping Type（side face）     Horizontal Impulse Piping Type（frontside）