Product Details

Home Products PIE Instrument

PIE 235 Process Voltage Calibrator

Features

  • Source three ranges of mV & V dc plus percent of 1 to 5 volts
    With the 235 you can check, calibrate and measure all your voltage, millivolt and pH signal instruments in your plant. Source -500.00 to 999.00 mV, 1.000 to 5.000 V, -25.00 to +125.00% of 1 to 5 V; 0.000 to 20.000 V.
  • Power your loops with over 1,000 Ohm loads
    The 20.000 V range has an extended span of up to 24.000 Volts giving you a portable source for powering your loops.
  • Read DC volts
    The 235 can measure from -500.00 to +999.00 mV, 0.000 to 5.100 V, -25.0 to 125.0 % of 1 to 5 V; 0 to 20.000 V and 0.00 to 60.00 V DC. Use it to check loop power supplies, I/V converters, 1 to 5 Volt signals, and other voltages.
  • Save time calibrating recorders and monitors in 4 to 20 mA loops
    Other brands of calibrators require that you break the loop to calibrate voltage inputs. With the PIE 235 you simply clip the test leads across the voltage inputs in a live 4 to 20 mA loop without disconnecting any wires.
  • Simulate pH probes into transmitters & analyzers
    Use the pH simulator to verify proper operation of pH devices before you place a probe into a calibrated buffer.
  • Quickly set any three outputs plus automatic stepping & ramping
    Easily set any value with the adjustable DIAL plus store any three output settings for instant recall with the EZ-CHECK switch. 2, 3, 5 & 11 steps automatically increment output in 100%, 50%, 25% or 10% of span plus continuous ramp. Set step/ramp time to 5, 6, 7, 8, 9, 10, 15, 20, 25, 30 & 60 seconds.
  • Use in the Plant, Field or Shop
    Includes Rubber Boot and Attached Test Leads; Low profile switches resist accidental damage
  • Simple Battery Changes
    Separate compartment for no-tool battery changes with four inexpensive “AA” batteries.

 

  • Share on

Advantages of the PIE Model 235 over the Altek 235

  • Wider ranges with greater accuracy – More than twice as accurate with 10 times greater resolution.
  • Automatic stepping
  • Larger display with backlight – Easy viewing in dark locations
  • More Resistant to Accidental Damage – Rubber Boot and Stronger Switches
  • Separate Battery Compartment with 4 “AA” Batteries – No more removing housing with screwdriver to replace three expensive 9V batteries. Calibration seals remain intact.
  • Simulate a pH probe – Calibrate pH transmitters and analyzers before attaching probe to verify that each is working correctly.
  • Includes Certificate of Calibration – All PIECAL Calibrators come with a free signed and dated certificate. Altek’s come only with an unsigned Statement of Calibration Practices with a certificate of calibration available for an extra charge.

General
Operating Temperature Range -20 to 60 °C (-5 to 140 °F)
Storage Temperature Range -30 to 60 °C (-22 to 140 °F)
Temperature effect ≤ ± 0.005 %/°C of Full Scale
Relative Humidity Range 10 % ≤RH ≤90 % (0 to 35 °C), Non-condensing
10 % ≤RH≤ 70 % (35 to 60 °C), Non-condensing
Common Mode Rejection 50/60 Hz, 100 dB
Normal Mode Rejection 50/60 Hz, 50 dB
Noise ≤ ± ½ Least Significant Digit from 0.1 to 10 Hz
Size 5.63 x 3.00 x 1.60 in, 143 x 76 x 41mm (L x W x H)
Weight 12.1 ounces, 0.34 kg (including boot & batteries)
Batteries Four “AA” Alkaline 1.5V (LR6)
Battery Life ≥ 50 hours
Low Battery Low battery indication with nominal 1 hour of operation left
Protection against misconnection Over-voltage protection to 60 vrms (rated for 30 seconds). Red LED and audible alarm indicates OVERLOAD for out of range conditions.
Display High contrast graphic liquid crystal display with 0.35” (9 mm) high digits on main & 0.2” (5 mm) on mA display. LED backlighting for use in low lit areas.
Voltage Source
Ranges and Resolution Accuracy
-500.00 to 999.00 mV ≤ ± (0.02 % of Reading + 0.01% of Full Scale)
1.000 to 5.000 V ≤ ± (0.02 % of Reading + 0.002 V)
0.000 to 20.000 V ≤ ± (0.02 % of Reading + 0.01% of Full Scale)
-25.0 to 125.0% of 1 to 5 V ≤ ± 0.1%
Source Current ≥ 20 mA
Sink Current > 16 mA
Output Impedance ≤ 0.3 Ohm at ≤ 20 mA load
Short Circuit Duration Infinite
Voltage Read
Range and Resolution Accuracy
-500.00 to 999.00 mV ≤ ± (0.02 % of Reading + 0.01% of Full Scale)
1.000 to 5.000 V ≤ ± (0.02 % of Reading + 0.002 V)
0.000 to 20.000 V ≤ ± (0.02 % of Reading + 0.01% of Full Scale)
-25.0 to 125.0% of 1 to 5 V ≤ ± 0.1%
0.00 to 60.00 V ≤ ± (0.02 % of Reading + 0.02 V)
Input resistance ≥ 1 MΩ
pH Source
Accuracy in mV ≤ ± (0.02 % of Reading in mV + 0.1 mV)
Accuracy in pH ≤ ± 0.003 pH @ 25°C