PIE 235 Process Voltage Calibrator
Process voltage calibrator that sources and reads mV/V ranges to 20 V (read to 60 V) with ≤±(0.02% of reading + 0.01% FS) accuracy and pH simulation.
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Same-day response on quotes. ISO/IEC 17025 accredited calibration available.
Overview
The PIE 235 sources three ranges of millivolt and voltage DC plus percent of 1 to 5 V for calibrating voltage, millivolt, and pH signal instruments. Source −500.00 to 999.00 mV, 1.000 to 5.000 V, 0.000 to 20.000 V, and −25.0 to 125.0% of 1 to 5 V. Measure those ranges plus 0.00 to 60.00 V DC for checking loop power supplies and instrument outputs.
pH simulation covers 0.000 to 14.000 pH @ 25 °C (corresponding to +414.12 to −414.12 mV) so you can verify transmitters and analyzers before placing a probe in buffer. Headline voltage accuracy is ≤ ±(0.02% of reading + 0.01% of full scale) on primary ranges.
Includes four AA batteries and a NIST-traceable calibration card; rubber boot for field protection. Made in the USA.
Features (PIE)
- Source: −500.00 to 999.00 mV, 1.000 to 5.000 V, −25.00 to +125.00% of 1 to 5 V, and 0.000 to 20.000 V. The 20 V range extends to 24.000 V, so the 235 can power loops with loads over 1,000 Ω.
- Read DC volts: −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, for checking loop supplies, I/V converters and 1 to 5 V signals.
- Live-loop voltage inputs: clip the leads across the voltage input of a recorder or monitor in a live 4 to 20 mA loop without disconnecting wires.
- pH simulation: simulate pH probes into transmitters and analyzers before the probe goes into a buffer.
- Stepping and ramping: store three outputs on the EZ-CHECK switch; step in 2, 3, 5 or 11 steps (100%, 50%, 25% or 10% of span) or ramp continuously, with step/ramp times from 5 to 60 seconds.
- Build and power: rubber boot and attached test leads included; four AA batteries in a separate compartment, changed without tools.
PIE publishes a comparison of the PIE 235 with the Altek 235.
Documentation (PIE)
PIE publishes a datasheet, operating instructions and field calibration procedures for the 235.
Browse all process calibrators.
Specifications
| Accuracy | |
| Voltage source/read (primary ranges) | ≤ ± (0.02% of Reading + 0.01% of Full Scale) |
| 1.000 to 5.000 V | ≤ ± (0.02% of Reading + 0.002 V) |
| Read 0.00 to 60.00 V | ≤ ± (0.02% of Reading + 0.02 V) |
| pH @ 25 °C | ≤ ± 0.003 pH |
| Ranges | |
| Voltage source | −500.00–999.00 mV; 1.000–5.000 V; 0.000–20.000 V; −25.0–125.0% of 1–5 V |
| Voltage read | Same plus 0.00 to 60.00 V DC |
| pH simulate | 0.000 to 14.000 pH @ 25 °C |
| Source/Read | |
| Source/sink current | ≥ 20 mA source; > 16 mA sink |
| Power | |
| Batteries / life | Four AA alkaline; ≥ 50 hours |
| Environmental | |
| Operating temperature | −20 to 60 °C (−5 to 140 °F) |
| General | |
| Included | Four AA batteries, NIST Traceable Calibration Card |
| Origin / cal | Made in USA; NIST-traceable calibration |
Documents
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Ordering information
1 ordering models available.
| Model | Description | List Price | |
|---|---|---|---|
| PIE-235-BP | $1,069.00 |
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