LumaSense Technologies M340 - Manual (Page 9)

M340 Manual Introduction 9
2 Introduction
2.1 Description
The M340 is a portable blackbody calibration source utilizing a digital indicating temperature
controller that may be set to any temperature between -20 °C to 150 °C (-4 °F to 300 °F). A
precision RTD temperature sensor is embedded in the blackbody emitter providing high accuracy
and repeatability. The temperature controller uses the industry standard PID algorithms to
control the emitter temperature to within +/-0.1 °C.
The blackbody emitter mechanism uses a solid state thermoelectric heating and cooling device
that provides long life, short stabilization times and stable temperature control. The most
important features of the M340 is the ability to achieve temperatures below ambient (cooling)
and the fast response times between temperature setpoints.
Temperature setpoints are altered simply by pressing the or arrow buttons on the controller.
The lower display (green) is the setpoint and the upper display (red) is the actual blackbody
emitter temperature.
2.2 Technical Data
Temperature Range: -20 °C to 150 °C
Temperature uncertainty
(thermometric calibration): ±0.05 °C
Temperature uncertainty
(radiometric calibration): ±1 °C at 8-14 µm
Temperature resolution: 0.1 °C
Stability: 0.1 °C per 8 hour period
Emitter Diameter: 2.00” (51 mm)
Emitter non-uniformity**: ±0.2 °C less than 100 °C, 0.4 °C greater than 100 °C
Apparent Emissivity + : 1.0 at 8-14 µm (if radiometrically calibrated) (standard M340)
Emissivity (if Thermometric
calibration):
0.9756 +/- 0.0039 @ 8-15 µm 0.9713 +/- 0.0049 @ 3-5 µm (M340X)
Control method: Digital Self-Tuning PID Controller
Warm-up Time: 6 minutes from ambient to –15 °C or 100 °C
Operating Ambient
Temperature:
5 C to 40 C
Operating Humidity: 90% RH max, non-condensing in heating mode. RH and setpoint
temperature must be less than environment dew point when in
cooling mode.
Power Requirements: 115 VAC ±50% 50/60Hz, 300W maximum
(optional 100 or 230 VAC)
Dimensions: H: 6.5” (167mm) x W: 11.0” (280) x D: 11.0” (280)
Weight: 7.1kg (15.6 lbs)
* Accuracy is defined for ambient temperature of 18 °C to 23 °C
** Emitter uniformity is defined for 1.6” (40 mm) diameter of central area
+ See Appendix for determining accuracy at wavelengths other than 8-14 µm region and types of
calibration available.