Key Features:

• Integrated microcontroller performs intelligent signal processing for advanced alarm functions.
• Windows XP/Vista/7 software configuration speeds setup and replacement.
• Push-button reprogrammability facilitates changes in the field without a host PC.
• Multi-purpose inputs accept numerous ranges to reduce spare stock requirements.
• High-resolution Sigma-Delta A/D converter delivers high accuracy with low noise.
• Input excitation supply on each input provides power for a two-wire transmitter.
• Dual alarm operation lets you perform two alarm functions at the same time.
• -25 to 70°C (-13 to 158°F) operation

Product Details

General Input

Analog to Digital (A/D) Converter
16-bit S-D A/D converter.

±0.005% of span or 0.1°C/ LSB. ADC typically yields resolutions finer than 0.1°C/LSB.

Ambient Temperature Effect
Better than ±0.005% of input span per °C or ±1µV, whichever is greater.

Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 130dB @ 60Hz.

Input Filter
Normal mode filtering, plus digital filtering optimized and fixed per input range within S-D ADC.

Input Response Time
Less than 200mS to 98% of final value for a step change in the input. A software programmable delay can be implemented for filtering transients.

Relay Time Delay
Adjustable alarm delay of up to 25 seconds.

Input Overvoltage Protection
Bipolar Transient Voltage Suppressors (TVS).

DC Millivolt Input

DC Millivolt/Voltage Input Ranges
±1.0V ±125mV ±31.25mV
±500mV ±62.5mV ±15.625mV

Millivolt Accuracy
Better than ±0.05% of input span.

 RTD Input

RTD Excitation Current
1mA DC typical, all types.

RTD Lead-Wire Compensation
25 ohms per lead.

RTD Break Detection
Configurable for either upscale or downscale.

Resistance Input

Resistance Input Range
0 to 500 ohms.
Resistance Accuracy
±0.05 ohms.


Relay (801A-0100 models)
One DPDT electro-mechanical relay.
Contact material Silver Nickel (AgNi 90/10).

Relays (801A-0200 models)
Two independent SPDT electro-mechanical relays.
Contact material Silver-Cadmium Oxide (AgCdO).

Relay Ratings (CSA ratings)
25V DC @ 5A. 120/240V AC @ 5A.

Expected Mechanical Life
20 million operations.


Ambient Temperature
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).

Relative Humidity
5 to 95%.

Power Requirements
10 to 36V DC. 55mA @ 24V. 75mA @ 15V.

3-way (input/output/power).
1500V AC for 60 seconds or 250V AC continuous.

Radiated Field Immunity (RFI)
EN61000-4-3, EN50082-1.

Electromagnetic Field Immunity (EMI)
No relay trips will occur beyond ±0.25% of input span from setpoint under the influence of electromagnetic fields from switching solenoids, commutator motors, and drill motors.

Electrical Fast Transient (EFT)
EN61000-4-4, EN50082-1.

Surge Withstanding Capability (SWC)
EN61000-4-5, EN50082-1.

Electrostatic Discharge (ESD)
EN61000-4-2, EN50082-1.

Radiated Emissions
EN50081-1 for Class B equipment.

CE marked, UL, cUL listed (USA, Canada).
UL3121 – general product safety.


Case: Self-extinguishing NYLON type 6.6 polyamide thermoplastic
UL94 V-2, color beige; general purpose NEMA
Type 1 enclosure.

Connectors (Removable terminal blocks)
Wire Range: AWG #14-22 (AWG #12 stranded only).

Printed Circuit Boards
Military grade FR-4 epoxy glass circuit board.