Measuring range	350 - 1350 °C
Sensor	Photo diode
Spectral range	1.0 - 1.7 µm
Response time t90	≤ 2 ms (T ≥ 620 °C)
Measurement uncertainty	1 % of the range's final value
Resolution interface	10 K (1 %)
Resolution display	10 K (1 %)

Switching output	2 NO contacts PNP ≤ 150 mA
Test input	10 - 34 V DC (acc. to IEC 61131-2)
Power supply	10 - 34 V DC Ripple ≤ 200 mV
Current consumption	≤ 30 mA at 24 V DC without load current

Display	two 7 segments LED, red, digit height 8 mm
Status display	2 x LED
Control elements	3 buttons

Connection	M12 connector, 5-pole
Ambient temperature	Messkopf: -20 - 250 °C Electronic: 0 - 65 °C
Storage temperature	-20 - +80 °C
Permissible humidity	95 % r.H. max. (non-condensing)
Dimension	Ø 30 x 163 mm (without plug)
Housing	Stainless steel
Protection class	IP 65 acc. to DIN 40050
Weight	Electronic part: 0,235 kg Measuring head: 0,230 kg

Parameters

Switch-on and switch-off point successively 1 % of the temperature range Switching function: N.O. / N.C. contact Switch-on and switch-off delay 0 to 9.9 sec, gradually 0.1 sec

Test function

via operating menu or via external control signal

Scope of delivery

Infrared sensor PKS 21 with measuring head PA 21.01 Manual 2 fixing nuts * The fibre optic cable must be ordered separately.