Comark Catalogue - COMARK - #29

°C

°F

ATEX: Atmosphere Explosif. Refers to the current standards for Intrinsically Safe equipment.

Baseefa: Refers to Baseefa 2001 Ltd, the notified body for Comark ATEX compliance.

Differential Measurement: Ability of an Instrument to measure temperature, pressure etc. simultaneously from two different points and to calculate the difference between them.

Distance to Spot Size Ratio: The measure of the Increase In the target area diameter detected by an Infra red thermometer, over the distance from Instrument to target surface.

Emissivity: The natural level of infra red radiation from the surface of any material. Emissivity is measured on a scale from 0.1 to 1.0, where 1.0 represents the radiation from a black body.

HACCP: Hazard Analysis and Critical Control Point. The quality system used throughout the food industry to ensure safe food.

HVAC: Heating, Ventlllatlng and Air Conditioning.

IP Rating: Set of standards for dust and waterproof protection. Many Comark instruments are rated at IP67.

IRDA: Direct infra red communication between an instrument and a PC or laptop for data downloading.

Lumberg and 8-pin Lumberg: Connector with locking screw, used to provide strong, secure probe-to-instrument connections with better prevention of liquid ingress.

NPL: The National Physical Laboratory.

Operating Range: Temperature and Humidity limits within which an instrument will function correctly

Pt100: Platinum resistance thermometer. High accuracy temperature sensor using electrical resistance and rated at 100 ohms.

"Quick" Calculations: Pre-programmed calculations available in software, such as average or standard deviation.

Resolution: Indicates the smallest difference In measurements that can be detected and displayed by the Instrument, e.g. 0.1° Indicates that the Instrument can detect differences of one tenth of a degree. In some cases there can be a difference between the detected measurement change and the displayed change.

Sub-miniature: Two-pin industry standard connector

System Accuracy: Temperature accuracy level for the instrument and probe combined. Instrument accuracy excludes the probe.

Thermistor: Type of temperature sensor offering accuracy suitable for food applications.

Thermocouple: Type of temperature sensor using bi-metal electrical properties. Eight types of bi-metal combinations are available: - K, N, T, J, R, S, E and B -with different measurement ranges and characteristics to suit different applications.

UKAS: The United Kingdom Accreditation Service.

Walkabout Logging: Ability to program a hand held data logger with a selected route of required temperature points, identified by location, so that the user can follow the route and store readings in location order.

Wraparound: Ability to program a data logger to continue logging when its memory is full, by logging new readings over the oldest readings already in the memory.

°C to °F = x 1.8 + 32 °F to °C = -32 + 1.8