Bench Process Stop-Clock Timer



The ATM-20A is easy to use as a standard timer or can be automatically triggered by external devices for start/stop via 4mm jack sockets. The stop-clock is a high accuracy timer, with a robust construction ideal for regular use. Colour coded buttons and jack sockets make the timer extremely practical and convenient to use.

  • 30ppm quartz crystal with a fixed calibrated capacitor of 27pF for hi-accuracy timing
  • 15mm LCD display
  • Quick and easy press-button action for activation of start, stop and reset
  • Stop, start and reset actuation buttons located on the top of the timer for faster reaction times
  • Pressing the reset button during a timing cycle displays the time elapsed
  • 4mm jack sockets for start, stop and reset allow automatic triggering of timer by external devices
  • Practical and convenient to use with colour coding and clear marking on buttons and jack sockets
  • Impact-resistant ABS case with non-slip rubber feet for stability on the bench
  • Supplied with battery

Technical Specification

Capacity 99mins 59,99secs with auto roll-over
Resolution 0.01 second
Accuracy ±1 Sec in 24Hrs
Power 1 x 1.5V AAA Alkaline Battery (LR-3)
Dimensions 100 x 105 x 80mm
Weight 151g

Calibration Options

A calibration service can be purchased for this unit. Once the Service has been performed a certificate of calibration is produced and dispatched with your order. Calibration Services are performed on receipt of your order and as such will delay shipping. Details and options are outlined below.

Traceable Calibration (Timer) Price
Issued at 5 points: 10mins, 15mins, 30mins, 45mins & 60mins
Additional points: From 1-120mins
£4.00 per point
Traceable certification is adequate for most applications and meets the calibration requirements of ISO 9001. All measurements contained in this type of certification are traceable back to National UKAS Standards.

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