Vartech® V 7220 R
Temperature & Process Calibrator
5-digit source & measure calibrator for DCV, Resistance, Thermocouple (multiple T/C types) and RTD (2W/3W/4W) — with torch and backlight.
Authorised Dealer Calibrators — mV, mA, Temperature & Process
mV, mA, temperature and process calibrators — source & measure Thermocouple (T/C), RTD, DC loop current (4–20 mA) and DC voltage. Designed for field calibration of transmitters and process instruments.
3 models
Vartech® 
Vartech® V 7221 B
Loop Calibrator
5-digit source & measure loop calibrator — source 0–30 mA DC, measure ±35 mA / ±35 V DC, with Sawtooth/Triangle wave, torch and backlight.
Vartech® MS 7221
V/mA Process Signal Calibrator
4½-digit V/mA calibrator — source and measure 0–24 mA DC loop current and 0–10 V DC, with 0.015% mA accuracy and 24 V loop supply.
Related Articles
Guides
What Is a Process Calibrator? A Complete Guide
Process calibrators inject known reference signals into transmitters and controllers to catch drift before it causes a process problem. Here's how they work.
GuidesHow Often Should You Calibrate Your Test Instruments?
An out-of-calibration instrument doesn't fail loudly — it just quietly gives wrong readings. Here's how to actually set a calibration interval instead of guessing.
Buying GuideNABL vs Manufacturer Calibration: What's the Difference?
Two calibration certificates can both say 'calibrated' and mean very different things to an auditor. Here's what NABL accreditation actually adds, and when you don't need it.
About Calibrators — mV, mA, Temperature & Process
CIE Instruments supplies three Vartech process calibrators: the V 7220 R temperature calibrator (source & measure DCV, Resistance, T/C and RTD — 2W/3W/4W), the V 7221 B loop calibrator (source 0–30 mA DC with sawtooth/triangle wave, measure ±35 mA and ±35 V), and the MS 7221 V/mA calibrator (0–24 mA / 0–10 V with 24 V loop supply and 0.015% mA accuracy).
Process calibrators are essential tools for instrument technicians and calibration engineers in process plants, refineries, power stations and manufacturing facilities. The MS 7221 provides exceptional loop current accuracy with a built-in 24 V loop supply for 2-wire transmitter calibration without an external power source.
Cambridge Instruments & Engg. Co. (CIE) — manufacturer of precision electrical test and measurement instruments in Howrah, West Bengal, India, established 1963. Pan-India supply: Kolkata · Howrah · Bhubaneswar · Cuttack · Bangalore · Chennai · Hyderabad · Mumbai · Pune · Delhi · Ahmedabad · Lucknow · Chandigarh · Ranchi · Raipur · Visakhapatnam · Nagpur.
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