Tamron MST2000 operation manual Electrical Connections, LCD DISPLAY and INTEGRAL KEY PAD, Key Pad

ELECTRICAL CONNECTIONS OPERATION MANUAL

4. ELECTRICAL CONNECTIONS

4.1 MST2100: NEMA 1 Enclosure

A. Review the MST2100 and MST2400 dimensional drawings.

B. Refer to the MST2000 Ter mi nal Block Draw ing. C. MST2000 In stru ment Elec tri cal Con nec tions are

cage clamp style for 12-24 AWG. Wire should be stripped back a min i mum of 3/16" inches (5mm).

D. The MST2000 Multivariable differential pressure transmitter is a HART® com pat i ble loop-powered 4-20 milliamp trans mit ter. Power con nec tion is made at the two left terminalpositions marked LOOP+ and LOOP-. Nom i nal power sup ply volt age is 24 volts DC which allows up to 600 ohms series resistance in the loop circuit.

þFor HART® ap pli ca tions, min i mum loop re sis tance is 250 ohms.

4.2 MST2400: NEMA 4X Enclosure

A. A ½" Liq uid Tite con duit con nec tion is lo cated on the bot tom of the En clo sure.

B. Con duit should be in stalled to pre vent con den sa tion from col lect ing in the in stru ment.

4.3 In te gral Power Sup ply Op tion.

A.The Integral Power Sup ply Op tion re quires an ex ter nal 120 Volt Power Sup ply.

B.A six (6) po si tion screw type ter mi nal block and ½" Liq uid Tite Conduit connection are sup plied with the In te gral Power Sup ply Op tion.

4.4 CanadianStandardsAssociationHazardousAreaApprovals

The MST2100 and MST2400 have been ap proved by CSA for haz ard ous area in stal la tions. See Sec tion 15 for de tails or con tact the fac tory.

5. LCD DISPLAY and INTEGRAL KEY PAD

All con trols and in di ca tors are Lo cated on the front panel of the MST2000. Re fer to the LCD& Key Pad Drawing.

5.1 Key Pad

All programming and control operations are per- formed using four (4) pushbuttons on the key pad. Following are summaries of each key.

MODE: ! Toggles the MST2000 between RUN Mode and PROGRAM Mode.

! Also used to change the edit cur- sor when entering a numeric value.

EDIT: ! Se lects the pa ram e ter to edit when in Programming Mode.

!Also saves the edited parameter data to memory.

INCREMENT: ! Increments (steps forward) through parameters and/or numeric values.

DECREMENT: ! Dec re ments (steps back wards) through pa ram e ters and/or nu meric val ues.

RESET: ! Resets the CPU. Re starts pro gram and loads in pro grammed vari ables stored in the E-Prom

Page 10 MST2000 Multivariable SMARTFLOW ® Transmitter Brandt Instruments, Inc.