Products

mV/Ohms Calibrator HandyCal 38504

The Digital mV/Ohms Calibrators (HandyCal 38504) are handheld, battery-operated, precision instruments designed for sourcing as well as measuring mV and Ohms signals. An exceptionally stable source provides continuously variable precision mV and Ohms output signals with two ten-turn potentiometers. A self-check facility establishes correct functioning of all circuit blocks. They are specially designed for cost-effective mass calibration of a select subset of a various process control instruments and systems.

Features

  • Precisely sources and measures mV and ohm
  • Available in single or dual parameters
  • Range : 200mV, 2000Ω
  • Resolution : 10μV, 0.1Ω
  • Accuracy : ± 0.02% of rdg ± 0.01% of FS ± 2 dgts
  • Available in 3½ and 4½ LCD Display
  • Useful for calibration of temperature indicators
  • Works a voltage regulator (in mV mode)
  • Acts as RTD simulator (in Ohms mode)
  • Acts as T/C simulator (in mV mode)
  • Suitable for mass calibration jobs during shutdowns
  • Uses 9V Ni-Cd battery with longer life for field use
  • Unique Self-Check facility ensures reliability

Specification

Display

3½ digit 12 mm LCD with a resolution of 1 in 2,000
4½ digit 8 mm LCD with a resolution of 1 in 20,000

I/O Option Display Ranges Resolution
A 3½ digits 20mV/200Ω 1 in 2,000
D 4½ digits 200mV/2000Ω 1 in 20,000

Input Impedance Voltage > 1 Megohm

Ohms Bright current of 0.1/1 mA depending on range
Input Protection Voltage/Ohms Input Terminals Protected for 24 V DC in Voltage & Ohms modes
Output Impedance Voltage < 0.05 ohm
Source Capacity Voltage Up to 250 mV minimum into 250Ω
at 90% Bat Volt Ohms Up to the maximum specified range

Accuracy and Self-Check @ operating temperature between 22-32 °C and valid for one year Calibration Cycle:


Accuracy Self-Check (on the display)
3½ digit ±0.05% of rdg ±0.05% of f.s. ±1 dgt 1777±1
4½ digit ±0.02% of rdg ±0.02% of f.s. ±2 dgts 17777±2

Power Supply options are as follows:

Option Battery Type Battery Life
A One 9V dry cell 5 ~ 6 Hrs in continuous use
B One 9V Ni-Cd cell 12 ~ 15 Hrs in continuous use

Low Battery Indicated by lighting all decimals or "LO BAT" indicator
Mains Operation A Jack is provided for an external Battery Eliminator/Charger
Rated Temp 5 to 55 °C
Humidity < 90% RH (Non-Condensing)
Zero Drift < 1dgt for every 10°C beyond the specified ambient of 22 - 32 °C
Span Drift < 0.0015% of rdg / °C
Storage Temp 0 to 70 °C (Without Batteries)
Enclosure Size 75(W) x 150(H) x 50(D) mm
Enclosure Finish Powder Coated
Enclosure Weight 0.6 Kg (Without Batteries & Accessories)
  • Battery eliminator
  • One 9V battery - dry OR rechargeable (with charger)
  • Probe set
  • Durable leather case
  • Specially designed wooden box
  • User Manual
  • Warranty Certificate for 2 years against Mfg defects
  • Calibration Certificate Traceable to NPL
contact Us
  • FF 1-2, Barahi Avenue
  • 990/3/1, GIDC, Makarpura,
  • Vadodara - 390010, Gujarat, India.
  • E-mail ID : contact@gipitronix.com
  • Phone No : +91-265-2642854 , +91-9974002937
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