Extreme Environment For high pressure, low temperature ...

1 S E N S O R D ATA S H E E T. Extreme Environment For high pressure , low temperature , and high temperature applications 800-552-6267. Extreme Environment Features Kaman originally developed the high v For applications requiring high accuracy, temperature dis- high reliability, and structural integrity. placement sensor to v Operating temperatures from -320 F to measure steam tur- +1000 F (+1200 F short term). bine shaft runout in v Displacement systems withstand pressures nuclear power plants. up to 3500 or 5000 psi. They are also used v Dual-coil sensor design effectively minimizes to measure nuclear radiation effects. fuel rod position/vi- v Hermetically sealed and laser welded.

2 Bration, since these v Unaffected by environmental contaminants. inductive sensors are unaffected by radiation and most other environmental contaminants. high Precision Sensors for Extreme Environments This specialized line of high temperature sen- sors features precise operation at up to 1000 F. Kaman Precision continuous and +1200 F short term. They have Products manufac- resolution and repeatability comparable to Ka- tures a line of high - man's conventional line of high precision sys- precision sensors tems. and systems spe- cifically for Extreme All of Kaman's high Environment applica- temperature trans- tions. These include ducers are made with three displacement sealed, all laser-weld- measuring systems, all able to operate at high ed Inconel housings temperatures .

3 And use metaljacket- ed, mineral-insulated The high temperature cable. products in this cata- log were initially de- signed for NASA and the nuclear power industry applica- The displacement transducers tions requiring high withstand pressures: reliability, accuracy, and structural integrity. The same engineering skill and technology that KD-1925 greater than 5000 psi; KD-1950 and went into Kaman's +2000 F microphone for KD-1975 up to 3500 psi. measuring the dB level of jet engine exhaust noise, in the exhaust, went into the design and manufacture of this superior line of high tem- perature products. 800-552-6267 | | Extreme Environment high temperature Displacement Sensors Features v Operating temperatures from -320 F to +1000 F.

4 V Excellent linearity v Rugged all welded construction v Ideal for high pressure environments v Hermetically sealed v Small error band v Corrosive gas or liquid environments v KDM-8200 electronics for the KD-1925, KD-1950 and KD-1975. Typical applications v Nuclear reactors v Steam and gas turbines v Turbine and rocket engines v Chemical processes From left to right, KD-1975, KD-1950 and KD-1925. v Research projects high temperature displacement sensors v high temperature processing Each sensor has dual coils inside the corrosion- KD-1925, KD-1950 and KD-1975 resistant case. In operation, an electromagnetic Displacement Sensors field generated by the active coil penetrates the front of the sensor to induce eddy currents in Kaman's high - temperature displacement sensors a conductive target within the sensor's range.

5 Provide accurate noncontacting measurement Changes in target displacement result in imped- of conductive surface motion in hostile environ- ance variation in the active coil. This variation is ments. Thermal compensation techniques that detected by the signal conditioning electronics maintain sensitivity and linearity with small zero and converted to a linear analog output signal. shifts make these accurate high temperature measurements possible. The symmetrical design of the dual coils com- pensates for constant and slowly changing tem- Kaman's sensors feature laser-welded Inconel peratures from -320 F to +77 F or from 77 F to construction, making them perfect for a variety +1000 F.

6 Measurement quality is unaffected by of Extreme Environment applications . The sen- most corrosive gasses and liquids and most sors use the versatile KDM-8200 family of signal other environmental contaminants such as oil, conditioning electronics. Single channel systems dirt, radiation, and stray RF and magnetic fields. are available in the NEMA-enclosed KDM-8200. or bench-top/ rack-mountable KDM-8200. The The cabling has two sections joined by a LEMO . NEMA enclosure houses an internal power sup- transition connector: a high - temperature metal- ply, digital panel meter and window kit. Up to sheathed, mineralinsulated section designed to eight measuring channels are available in the the same environmental specifications as the rack-mountable KDM-8200.

7 (See Kaman's KDM- sensor, and a flexible section of Teflon jacketed, 8200 data sheet for a complete description and twisted pair, coax cable for connection to the additional specifications for these electronics.) electronics unit. 800-552-6267 | | Extreme Environment high temperature Displacement Sensors Signal Conditioning Electronics KDM-8200 3U/84 HP. KDM-8200 3U/42 HP. KDM-8200 NEMA enclosure 800-552-6267 | | Extreme Environment high temperature Displacement Sensors KD-1925 Displacement Sensor Specifications Measuring range* (maximum mechanical offset inch). KD-1925 inch ( mm). KD-1925M** inch ( mm). Electronics KDM-8200. Flange mount, smooth body Power input (120 Vac).

8 Output (electrical zero offset up to 50% of measuring range). KD-1925 0-2 Vdc nominal (50 mV/mil). KD-1925M** Vdc nominal (50 mV/mil). Resolution (at mid range). Static 30 inch ( inch) [ mm]. Dynamic 50 inch ( inch). [ mm]. Repeatability 30 inch at mid range Operating temp. range -320 F TO +77 F or +77 F to +1000 F (+538 C). Nonlinearity Within FSO at customer selected calibration temp. Typical temperature coefficients (over maximum specified thermal range). Zero shift F FSO ( C FSO). Sensitivity shift F FSO ( C FSO). Frequency response 0-10 kHz (3 dB). 30 kHz available on request Sensor material Corrosion resistant high temp. nickel chrome alloy (Inconel 718).

9 Welded and hermetically sealed Cable material Nickel chrome alloy (Inconel 600) sheathed, mineral insulated Standard cable lengths Hardline 10 feet Softline 5 feet Target material Conductors - nonmagnetic and magnetic Operating pressure range To 5000 psi Standard mounting configurations 1. 5/16-24 thread mount 2. Flange mount, smooth body *Change from standard may degrade specifications. **For magnetic targets. 800-552-6267 | | Extreme Environment high temperature Displacement Sensors KD-1950 Displacement Sensor Specifications Measuring range* (maximum mechanical offset inch). KD-1950 inch ( mm). KD-1950M** inch ( mm). Electronics KDM-8200 with internal power supply Power input (120 Vac).

10 Output (electrical zero offset up to 50% of measuring range). KD-1950 Vdc nominal KD-1950M** Vdc nominal Resolution (at mid range). Static 50 inch ( inch). [ mm]. Dynamic 100 inch ( inch). [ mm]. Repeatability 100 inch at mid range Operating temp. range -320 F to +77 F or +77 F to +1000 F (+538 C). Nonlinearity Within 1% FSO at customer selected calibration temp. Typical temp. coefficients (over maximum specified thermal range). Zero shift F FSO ( C). Sensitivity shift F FSO ( C). Frequency response 0-10 kHz (3 dB). Sensor material Corrosion resistant high temp. nickel chrome alloy (Inconel 625). welded and hermetically sealed Cable material Nickel chrome alloy (Inconel 600).