G
HYGRASGARD
®
ESFF ⁄ ESFTF
Series HYGRASGARD
®
ESFF / ESFTF humidity sensors are used for measuring
the relative humidity and temperature of air in pressure systems and convert
these measured values into standard signals of 0 - 10 V or 4…20 mA. Process
connection by G ½" straight external pipe thread, with terminal box enclosure
made of impact-resistant plastic and enclosure cover with quick-locking screws.
These screw-in humidity sensors are to be operated in pollutant- free non-
precipitating air, mounted vertical with the sensor pointing down.
TECHNICAL DATA:
Power supply: ........................ 24 V AC ⁄ DC for U variant
15 ... 36V DC for I variant,
R
L
depending on working resistance
Power consumption: ................ < 1 VA ⁄ 24 V DC for U variant
< 2 VA ⁄ 24 V DC for I variant
Sensors: ............................... digital humidity sensor with integrated
temperature sensor, dew-proof, small hysteresis,
high long-term stability ± 1 % per year
Sensor protection: ..................
metal sinter filter,
exchangeable
HUMIDITY:
Measuring range, humidity: ....... 0 … 100 % r. H.
Operating range, humidity: ....... 10 … 95 % r. H.
Deviation, humidity: ................. ± 3 % r. H. (40…60 %) at + 20 °C,
otherwise ± 5 % r. H.
Output, humidity: .................... 0 -10 V at U variant
4...20 mA at I variant (transmitter R
L
< 500 Ω)
TEMPERATURE:
Measuring range, temperature: ......... 0 ....+ 50 °C
Operating range, temperature: ....... 0 ....+ 50 °C
Deviation, temperature: ........... ± 0.5 K at + 20 °C
Output, temperature: .............. 4 ... 20 mA
Ambient temperature: ............. storage - 25 …+ 60 °C, operation -5 …+ 55 °C
Electrical connection: .............. 2- or 3-wire connection (see connecting diagram),
0.14 - 1.5 mm², via terminal screws on circuit board
Enclosure: ............................. plastic, material polyamide, 30 % glass-globe-reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour pure white (similar RAL 9010)
Enclosure dimensions: ............. 72 x 64 x 37.8 mm (Thor III)
Cable gland: ........................... M16 x 1.5 , including strain relief, exchangeable,
max. inner diameter 10.4 mm
Protective tube: .....................
metal,
brass, nickel-plated, Ø 20 mm
Process connection: ................ G ½"
Nominal pressure: .................. p
nenn
< 20 bar
Overload: ............................... max. 5 times nominal pressure
Bursting pressure: .................. p
max
= 150 bar
Protection class: .................... III (according to EN 60 730)
Protection type: ..................... IP 65 (according to EN 60 529)
Standards: ............................ CE conformity, electromagnetic compatibility
according to EN 61 326 + A1 + A2,
EMC directive 2004 ⁄ 108 ⁄ EC
Connecting diagram
ESFF - I
1
2
Supply voltage 15-36V DC
4-20mA for 0-100% r.H. R
L
< 500 Ohm
Connecting diagram
ESFTF - I
1
2
3
Supply voltage 15-36V DC
4-20mA for 0-100% r.H. R
L
< 500 Ohm
4-20mA for 0-50C° R
L
< 500 Ohm
Connecting diagram
ESFF - U
1
2
4
UB- GND
UB+ supply voltage 24V AC/DC
Output humidity in r.H. 0-10V
Connecting diagram
ESFTF - U
1
2
6
4
UB- GND
UB+ supply voltage 24V AC/DC
Output humidity in r.H. 0-10V
Output temperature in °C 0-10V
Type ⁄ WG1
Designation
Measuring Range ⁄ Readout
Humidity Temperature
Output
Humidity Temperature
Item No.
ESFF - I
I - variant
ESF F -I
0 …100 % r. H.
–
4 … 20 mA
–
1201-2112-0000-000
ESFF - U
U - variant
ESF F -U
0 …100 % r. H.
–
0 -10 V
–
1201-2111-0000-000
ESFTF - I
I - variant
ESF T F -I
0 …100 % r. H.
0…+50 °C
4 … 20 mA
4 … 20 mA
1201-2112-1000-000
ESFTF - U
U - variant
ESF T F -U
0 …100 % r. H.
0…+50 °C
0 -10 V
0 - 10 V
1201-2111-1000-000
Содержание HYGRASGARD ESFF
Страница 16: ...HYGRASGARD ESFF HYGRASGARD ESFTF D G F r...
