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Leading Manufacturer, Supplier & Retailer of Gas Meter Calibration Test Bench, Pressure Calibrator, Dry Block Calibrator, Signal Calibrator and Temperature Calibrator.
The Calibration Standard of the Test Bench is Bell Prover, which is considered a Primary (Calibration) Standard to Test & Calibrate Domestic Gas Meters (& Gas Meters used in Hotels/Restaurants etc.). The device is ideal for OEMs, Calibration Laboratories & Calibration Service Providers.
The Test Bench, with 2 Sizes of Bell Prover (20L & 100L)will effectively cover Very Low (Qmin typically 0.016 m3/h (0.27 LPM)) to Maximum (Qmax 6 m3/h (100 LPM)) Flow Rates. Available Accuracies : 0.2% & 0.5% F.S.
Upto 4 Gas Meters can be connected (inserted) during a campaign. Facility provided for continuously monitoring Differential Pressures (DP) across each Meter as well as upstream & downstream Line Pressures & Line Temperatures. Line Pressures are regulated typically around 500Pa.
All the testing procedures are controlled by the PC and run automatically, the Test Results can be saved, printed.
Simple/Basic, Manual/Semi-Automatic Test Bench Models are also available. Test Bench frame is made of Industrial Aluminium with perfect outlook and strong structure.
A Boon for Calibration of Domestic Gas Meters OEMs, Hotels, Hospitals & R&D Institutions.
Flow Rates : 0.018 to 6 Cu.M/Hour
Suitable for Gas Meter Sizes : G1.6, G2.5, G4, G6
Bell Prover : Capacity 20/100/200 Litres
Accuracy : 0.2% & 0.5% (Traceable to ISO/IEC 17025 Accredited Laboratory).
Upstream/Downstream Pressure & Temperature Measurement
D.P. Gauges (for measurement of pressure loss) : 0 to 1.0 Inch of Water (0 to 250 Pa)
Meter Clamping : Pneumatic
Simultaneous Calibration of multiple Meters (Provision to mount 2/4/6/8 Meters)
Consult us for higher capacity Bell Provers for Calibration of Industrial / Bulk Meters.
Ranges : -0.85 to 2 / 10 / 20 / 35 / 40 / 60 bar
Accuracy : 0.1% F.S.
2 Line Alpha Numeric Display
Touch Membrane Keypad
Selectable Engineering Pressure Units
DC Current Measurement : 0 to 25 mA (Active)
Switch Test capability & Zero Offset facility
Audio & Visual Alarms for Over Pressure
Pressure Transducer all Media compatible with SS316
9V Battery operated with Low Battery indication
Digital Pressure Indicator with matching Pneumatic Hand Pump with Vernier
| Ranges | Pressure Switch Test |
| -0.85 to 2 / 10 / 20 / 35 / 40 / 60 bar | Maximum 5V DC |
| Accuracy | Over Pressure Alarm |
| ±0.1% F.S. | 105% FS (Audio / Visual) |
| Resolution | Pressure Generation |
| Minimum 4½ digits | Thro’ Matching Pneumatic Hand Pump with Fine Adjustment Vernier & Release Valve |
| Display | Battery Type & Life |
| 2 line, 16 characters LCD (Alpha-Numeric) | 9 Volts; Approx. 12 Hours |
| Engineering Units | Low Battery Indication |
| Mpa, Atm, Bar, Kg/cm2, mH2O, PSI, inHg, ftH2O, Kpa, inH2O, mmHg, cmH2O | Provided |
| mA Input | Instrument Dimension Weight |
| 0 to 25 mA DC (Active) | 420 x 340 x 120 mm (L x B x H) 5 Kg. |
Range : 50 to 600C
Accuracies : 0.1% F.S. +1 digit (ETC 600); 0.15% F.S. +1 digit (ETC 600-2)
Cost Effective Economy Model
Immersion Depth : 110 mm (ETC 600); 190 mm (ETC 600-2)
Calibration at Site, Fast & Reliable
PD Temperature Control
Analog Output
Switch Test facility
Interchangeable Thermowell Inserts, Single / Multihole
| Range | Heating Time (Ambient to max.) | |
| 50°C to 600°C | 18 Minutes (approx.) ETC 600 | |
| 40 Minutes (approx.) ETC 600-2 | ||
| Resolution | Cooling Time (to 100°C) | |
| 1°C | 60 Minutes (approx.) ETC 600 | |
| 100 Minutes (approx.) ETC 600-2 | ||
| Display | Interchangeable Thermowells | |
| Digital Display, 3½ digit LED | Single hole to suit 1/4″ & 1/2″ Probes – StandardOther Sizes / Multihole – optional | |
| Accuracy | Switch Test Facility / Supply | |
| ±0.1% F.S. + 1 digit ETC 600 | Provided / 7 VDC Nominal | |
| ±0.15% F.S. + 1 digit ETC 600-2 | ||
| Stability | Analog Output (F.S.) | |
| ±0.5°C | 10 mV / °C | |
| Temperature Readout | Power Supply / Consumption | |
| °C / °F Switchable | 230V AC / 50 Hz / 1200 Watts | |
| Well Diameter | Instrument Dimensions (L x W x H) | |
| 25 mm | 270 x 124 x 240 mm ETC 600 | |
| 270 x 124 x 306 mm ETC 600-2 | ||
| Immersion Depth | Instrument Weight | |
| 110 mm (ETC 600) 190 mm (ETC 600-2) | 7 Kgs. (ETC 600) 9 Kgs. (ETC 600-2) |
Compact, Light Weight Unit with Holster
Selectable Temperature Output Readings (in C / F)
Measurement & Simulation of
Thermocouple types R, S, B, E, K, J, T & N
Voltage 1 V Simulation, 100 mV Measurement
INPUT FUNCTIONS (Measurement)
| Input | Range | Input range | Resolution | Accuracy | Remarks |
| Voltage (DC) | 100 mV | -10 to 110 mV | 10 mV | ±0.05% measured value
± 30 mV |
Input Resistance 1MW |
| Thermocouple | R | -40 to 1760°C | 1°C | ±0.05% measured value ±3°C (<100°C)
±0.05% measured value ±2°C (>100°C) |
Input Resistance 1MW |
| S | -20 to 1760°C | 1°C | |||
| B | 400 to 1800°C | 1°C | ±0.05% measured value ±3°C (400 to 600°C)
±0.05% measured value ±2°C (>600°C) |
||
| E | -200 to 1000°C | 0.1°C | ±0.05% measured value ±2°C (< -100°C)
±0.05% measured value ±1°C (> -100°C) |
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| K | -200 to 1370°C | 0.1°C | |||
| J | -200 to 1200°C | 0.1°C | |||
| T | -200 to 400°C | 0.1°C | |||
| N | -200 to 1300°C | 0.1°C |
OUTPUT FUNCTIONS (Simulation)
V B Venkateswaran (executive Director) (Nagman Instruments and Electronics)
No 1 Nagman Complex - Block a - Bangalore Nh-4 Chembarambakkam Nazarathpet Via. - 600123 , Chennai, Tamil Nadu, India
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