Read TM21_22_23.pdf text version

Total Pressure Gauges

Fine Vacuum Gauges

THERMOVAC TM 21/TM 22/TM 23

Instruments for operating thermal conductivity sensors (PIRANI gauges) covering a measuring range of 5 x 10-4 to 1000 mbar (5 x 10-4 to 750 Torr). The relays built into the TM 21/ TM 22/TM 23 make these instruments the ideal choice for process control systems.

Advantages to the User

x One, two or three continuously operating measurement channels, with selectable display x Dual LCD display combines the advantages of analog and digital readouts x Clear display of pressure and operating status with analog trend indication, can also be read from a great distance x Aligned and temperature compensated sensors having a low filament temperature x Simple to operate x Cost-effective sensing cell replacements x Fault indication in case of a broken filament x Two adjustable switching thresholds with relay contacts per measurement channel ) x Logarithmic/linear 0 to 10 V chart recorder output

Typical Applications

x General purpose pressure measurement and control in the fine and rough vacuum ranges, vacuum furnaces and analytical instruments x Monitoring the operation of backing pumps and vacuum systems x Safety circuits in vacuum systems x Control of ionization vacuum gauges

Sensors

Either the TR 211/TR 212 and TR 216 (corrosion protected) may be connected to the THERMOVAC TM 21/TM 22/TM 23 (see chapter "Sensors"). Upon delivery the sensors are supplied fully aligned and ready for operation.

M3 - 3,2 mm

122,5 128,5 112

91,5

x Compact bench-top unit (1/4 19 in., 3 HU), which may also be installed in panel cut-outs and 19 in. racks x Pirani principle x Full remote control via RS 232 C interface (TM 21/TM 22) x Locking of the keypad via softlock keylock (TM 21/TM 22/TM 23) x CE mark

106,5

104,5

282 350 353,5

Dimensional drawing and panel cut-out for the THERMOVAC TM 21/TM 22/TM 23

C16.34

LEYBOLD VACUUM PRODUCTS AND REFERENCE BOOK 2003/2004

Fine Vacuum Gauges

Total Pressure Gauges

Techni cal Data

Number of measurement channels Display range Unit of measurement (selectable) Display Type of gas (selectable) Measurement uncertainty with THERMOVAC sensors (after warming up) Switching thresholdskte Adjustment range for the switching Ready relay Rating of the relay contacts Contact life at 5 A Chart recorder output (Ra > 2.5 k) Main connection 50/60 Hz (selectable) Power consumption Storage temperature range Nominal temperature range Max. rel. humidity Weight, approx. Dimensions (W x H x D) Cable length, max. Interface V VA °C °C % n.c. kg (lbs) mm m mbar (Torr) mbar (Torr)

TM 21

1

TM 22

2 5 x 10-4 to 1000 (3.75 x 10-4 to 750) mbar, Torr, Pa, Micron Digital, 7 segment-LCD, analog, LCD bar graph Air, N2, Ar

TM 23

3

20 % of the meas. value in the range 10-3 to 10-2 mbar, 15 % v. of the meas. value in the range 10-2 to 102 mbar 2 floating changeover contacts per measurement channel 5 x 10-3 to 500 (3.75 x 10-3 to 375) Contact closed when ready AC 240 V/5 A (resistive load) / DC 60 V/0.7 A (resistive load) 6 x 104 cycles 0 to 10 V, selectable: logarithmic/linear; logarithmic divisions: 1.67 V/decade, linearly adjustable over 3 decades; 0 V corresponds to 10-3 mbar, 10.5 V for faults 100/120/200/230, +10/-15 % 12 -40 to +60 0 to 40 80 2 (4.4) 106.5 x 128.5 x 282 100 RS 232 C ­ 14

Order i ng I nf ormation

Euro model, with 2 m long main cord, mbar readout, 230 V AC US model, with 2 m long main cord, Torr readout, 120 V AC Calibration Options 19" installation frame 1/4 19" blank panel THERMOVACsensors TR 211, DN 16 KF TR 211, 1/8" NPT TR 212, DN 16 KF TR 212, DN 16 CF TR 216, DN 16 KF Connection cables 05 m 10 m 15 m 20 m 30 m 40 m 50 m 75 m 100 m

TM 21

Part No. 157 83 Part No. 896 83

TM 22

Part No. 157 84 Part No. 896 84

TM 23

Part No. 157 98 Part No. 896 98

see section "Miscellaneous", para. "LEYBOLD Calibration Service" Part No. 161 00 Part No. 161 02 Part No. 157 85 Part No. 896 33 Part No. 158 52 Part No. 158 86 Part No. 157 87 Part No. 162 26 Part No. 162 27 Part No. 124 34 Part No. 162 28 Part No. 124 35 Part No. 124 36 Part No. 124 37 Part No. 124 38 Part No. 124 39

C16

LEYBOLD VACUUM PRODUCTS AND REFERENCE BOOK 2003/2004

C16.35

Information

2 pages

Report File (DMCA)

Our content is added by our users. We aim to remove reported files within 1 working day. Please use this link to notify us:

Report this file as copyright or inappropriate

38843


You might also be interested in

BETA
Pressure_Sensors_SE702.pdf
catalogue.indb
An Evaluation of Superheat-Based Refrigerant Charge Diagnostics for Residential Cooling Systems