Deskripsi
Gas Meter RMG VOLUMETER TRZ 03-K
Description :
LF-Pulse transmitter (in the meter head)
Standard : reed contact
Alternatively : inductive pulse transmitter
Option : up to 3 LF pulse transmitters possible
HF-pulse transmitter(Option)
• In the meter head: Inductive pulse transmitter (HF 1), pulse frequency at Qmax approx. 100 Hz.
• In the meter case: Inductive pulse transmitter for scanning
– the blades of the turbine wheel (HF 3, from DN 80)
– the cams of the reference wheel (HF 2, from DN 100)
All inductive pulse transmitters provide volume pulses incompliance with NAMUR.
Meter head (type “F”)
• Protection class IP 65
• Universally readable
• Totalizer unit and HF1 pulse transmitter are easily replaceable on site.
Measuring range: up to 1:16
Nominal size: DN 50 through DN 600 Special designs with larger nominal sizes up to DN 1000 are possible.
Pressure rating:
PN 10 through PN 100, ANSI 150 through ANSI 600 Special designs with a higher pressure rating are possible.
Operating temperature range:
Standard design: -10°C to +50°C Special designs for higher and/or lower temperatures are possible.
Explosion protection
The pulse transmitters are intrinsically safe; their type of protection is EEx ib IIC T6. Therefore, the TRZ 03-K can be operated in Zone 1.
Long service life pr-connection
To connect the pressure transmitter of a PTZ corrector.
Manufacturer‘s test certificate
In compliance with EN 10204/2.3, for strength and leak testing.
Material
Rotor: Delrin for DN 50 to DN 200 and PN 10 / PN 16. Aluminium alloy for all other diameters and pressure
ratings and for meters with HF sensors. Aluminium rotors instead of delrin rotors on special request
Accuracy
Error limits (standard):
±2% for Qmin to 0.2 Qmax (DN 50, DN 80: ±3%)
±1% for 0.2 Qmax to Qmax (DN 50: ±1.5%)
These limits apply in the event of a steady, swirl-free fl ow.
Higher accuracy available on special request.
Repeatability: ±0.1%
All gas meters are tested in the factory with air under
atmospheric pressure.
Approvals
The gas meters substantially comply with PTB and
EC/EEC regulations (G120 3B of the EC dated September 6, 1971).
The TRZ 03-K Volumeter has been examined according
to the pressure equipment directive 97/23/EC by DVGW
and is registered under the product ident number
CE-0085BN0292.
The TRZ 03-K Volumeter meets the OIML guideline
IR-32/89, Annex A.
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