KROHNE OPTITEMP TC 100 Ex EN - Manual (Page 8)

2
DEVICE DESCRIPTION
8
OPTITEMP TR/TC100
www.krohne.com 08/2010 - 4001022701 - Ex AD OPTITEMP TR/TC 100 R01
Regardless of the temperature class, the lower limit value for the product temperature for all
versions is:
• TC 100: T
M
= -40°C / -40°F
• TR 100: T
M
= -200°C / -328°F
2.8 Electrical data
Connect the sensor circuit of a measuring insert only to intrinsically safe circuits as well as
separate transmitters certified as intrinsically safe or zener barriers. Observe the following
maximum values:
• U
i
= 30 V
• I
i
= 140 mA
• P
i
= 1.0 W
Keep in mind the following maximum values for effective capacities and inductances when
interconnecting:
Sensor length
up to 5 m / 16.4 ft up to 30 m / 98.4 ft
C
i
= [nF] L
i
= [µH] C
i
= [nF] L
i
= [µH]
TR100 with Pt100 wire wound 3.5 65 21 390
TC100 type K 2.5 25 14 150
TC100 type J 2 48.5 11.5 289.5
.book Page 8 Wednesday, August 11, 2010 11:40 AM