APCS the Signal Conditioning Specialists


QAM803 - Quad Monitor

Product Diagram

The QAM803 will accept one input which can be almost any type of sensor or a high level process signal. The module provides an auxiliary 24Vdc/20mA loop power supply or auxiliary supply to proximity sensors. For connection to other equipment, a scaled high level retransmit output (such as 4 - 20mA) is available.

Three individual settable trip points plus one out-of-limit (window) alarm can produce open collector, or relay contact outputs.

All trip points have a front status indication. The three settable points are adjusted via 15-turn potentiometers with the help of test sockets giving a 0 - 5V trip set range.



dc mA/V




4-20mA 4-Wiredc mA/V 4-WireRelay

Lead Time for a Discontinued Product


Discontinued products are no longer manufactured. Alternate products are usually listed on the discontinued product page. It may still be possible to manufacture these items depending on parts availability and cost.

Alternate Products


Order Processing


APCS makes and customises products according to a customers order. Upon receipt of the customers order the following information is required before manufacture, allocation or deliver until full details are given, these include;

  1. Identity of purchaser. Company name, ABN (Australian companies), street address and accounts email address.
  2. Required delivery address.
  3. Full part number and calibration detail required to manufacture items.
  4. Total on purchase order to include delivery charges. Orders received with missing information will be entered and marked to indicate missing details and returned to the customer for correction or approval.

Compliance with the above ensures that your items are manufactured and delivered according to the required specifications.

Standard delivery times commence after the order has been approved for processing.