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Precision Thermometers

F500 Precision Thermometer

Features
		Accuracy: ±0.005°C; (typically ±0.001°C at 001°C)
		4 wire AC bridge for stability without recalibrating
		User selectable resolution of up to 0.001°C or 0.0001 ohms over full range
		Range: -200°C to +962°C depending on probe
		2 channels as standard with optional 4 or 6 channels expandable up to an additional 64 channels with Switchboxes

Typical Applications
		Site Standard
		Environmental Chambers
		Research
		Viscometry
		Multi-channel logging

F500 Brochure (PDF, approx 116KB)

For more information about this product contact ASL

ASL's F500 provides high accuracy, multi channel temperature measurement with Platinum Resistance Thermometers - PRTs - and uses AC bridge technology as developed by ASL for Standards Laboratories throughout the world. Model F500 requires no regular recalibration, the AC circuit techniques eliminating thermal EMFs and drift, while providing excellent long term stability. Front panel data entry allows you to enter probe calibration data into the F500's memory, so that thermometer resistance can be accurately converted to temperature in °C, °F or K. This can be password protected to prohibit unauthorised or accidental data entry. The combination of proven technology and sophisticated microprocessor control gives you a reliable, easy to use precision instrument.

Using F500 with SB500 Switchbox

The 8 or 16 channel SB500 switchbox complements the F500 in appearance and performance. Adding no extra system errors you can use one to four switchboxes connected to an expansion port on the rear of the F500, with either manual switching from the keypad or under interface control. With the addition of four 16 channels SB500's this can provide 64 additional channels to the F500. This turns the F500/SB500 into a powerful logging system.

F500 Precision Thermometer Features

See the table below for a run-down of this product's features and capabilities.

Range	-200°C to +962°C, depending on PRT used (0 - 500 ohms)
Accuracy	F500 only:	±0.005°C (±5mK) typically at <±0.001°C (±1mK) at 0.01°C
	F500 + T100-250:	±25mK (-50°C to +250°C)
	F500 + T100-450:	-70°C (±45mK), -40°C to +250°C (±25mK),+250°C to +450°C (±100mK)
	F500 + T100-650:	-189°C to 420°C (±20mK), +420°C to +550°C (±35mK)
Resolution	0.001°C /°F /K (user selectable)	0.0001 ohms (user selectable)
Repeatability	±2 least significant digits (±0.002°C), included in accuracy
Internal reference	25 and 100 ohms (user/ auto selectable)	Long term stability <±5ppm per year (<0.005°C for co-efficient ±0.1ppm/°C)
Temperature co-efficient	±0.1ppm/°C ambient change. Operating ambient: 15°C to 35°C (15°C to 25°C for best accuracy). 10-90% Rh non-condensing
Data entry format	ITS90 coefficients, Callender van Dusan coefficients, EN60751 for Current Industry probes or Coefficient generation from data pairs.
Probe Current	Industry Standard 1 mA , 5 mA constant AC current source ( auto selectable)
Probe Types	1 mA constant current source
Thermometer input connectors	Front panel:	2 x 5 pin industrial DIN socket
Thermometer input connectors	Rear panel:	Optional 2 or 4 x 5 pin industrial DIN socket
Communications	USB (standard)	Optional RS232C or IEEE-488 or LAN Ethernet

For more information about this product contact ASL

ASL a brand of Elektron Technology

2 Gatton Park Business Centre
Wells Place
Redhill, Surrey
RH1 3LG