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MINCO
TT190 and TT230
2-wire Temperature Transmitters
Installation and Operating Instructions
INTRINSICALLY SAFE
NON-INCENDIVE
TT230
TT190
MINCO
MINCO
PRODUCTS, INC.
7300 Commerce Lane, Minneapolis, Minnesota 55432-3177 U.S.A.
Telephone: (763)571-3121
FAX: (763)571-0927
1
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Summary of Contents for Minco TT190
- Page 1 MINCO TT190 and TT230 2-wire Temperature Transmitters Installation and Operating Instructions INTRINSICALLY SAFE NON-INCENDIVE TT230 TT190 MINCO MINCO PRODUCTS, INC. 7300 Commerce Lane, Minneapolis, Minnesota 55432-3177 U.S.A. Telephone: (763)571-3121 FAX: (763)571-0927...
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Page 2: Installation
Maximum DC supply voltage = 35 VDC. The T/C connections for the Temptran in the wiring diagram below must be connected as shown or the transmitter will not function properly. For model TT190, the Temptran has been factory-calibrated for its marked temperature range. Do not change its zero and span adjustments. - Page 3 Installation of TT190 and TT230 Temptrans in Class I, Divisions 1 or 2, Groups A, B, C, and D hazardous locations. Read these instructions thoroughly before installing transmitters. Per Factory Mutual, 1) Installation shall be in accord with these instructions and the National Electric Code.
- Page 4 a. Impact Tests - The equipment shall be held firmly against a rigid support and shall be subjected to sets of three blows from a spring-operated impact hammer. The hammer shall be applied to any external part that when broken is likely to expose live parts. A window of an indicating device shall withstand an impact of 0.085 Newton-meter (0.753 pound force-inch) from a hollow steel impact sphere 50.8 mm (2 inches) in diameter and an approximate mass of 113.4 grams (4 ounces).
- Page 8 Calibration NOTE: Steps 1 - 3 are only required if calibrating model TT230. If calibrating model TT190, then skip to step 4. 1. Desired Zero (4 mA) temperature must be within the limits specified in table below. 2. Select desired span from the table. Temperature Span equals the desired temperature at 20 mA minus the desired temperature at 4 mA.
- Page 9 9. Adjust SPAN potentiometer on the transmitter until the meter reads 20 mA. 10. For model TT230, repeat steps 6 - 9 until no further adjustment is necessary. Model TT190 has non-interacting Zero and Span adjustments; therefore, steps 5 - 8 should not have to be repeated.
- Page 10 Temperature Range: Use one of the over 175 range codes in the MINCO Temptran sales bulletin. Note: A range that is available for a particular Temptran model is not automatically available for the TT190 or TT230; there may be a nominal charge. Also, ranges available for the TT190 and TT230 depend on T/C type.
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