December, 2016
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Page 63 Crydom Launches Load Monitoring Module
San Diego, CA — Crydom has intro- duced its DRML1 load monitoring module, designed specifically for NOVA22 solid-state relays (SSRs),
stored during installation. Normal operation is monitored and failures are detected. An alarm is activated when the module detects undercur- rents in the heating circuit less than –12.5 percent of the nominal current. The module allows for other alarm conditions to be detected such as: over-current condition (when the cur- rent exceeds the maximum of +12.5 percent of the nominal current), blown fuses (open load), damaged (short-circuited SCR) and interrupted SSR, as well as those in half-wave operation. The teach value is set by the operator either with the “Teach- In” pushbutton, placed on the front, or with the external “Teach-In” input.
The module allows the user to
select the maximum current value of 20 or 50A, operates with a minimum partial load detectable value of 150 mA, and includes an adjustable alarm response delay (0.1, 1 or 5 sec- onds). This avoids fault messages generated by voltage drops. Malfunctions are indicated by a
multicolor LED and can be localized systematically by the alarm output which allows up to 128 DRML1 mod- ules to be connected to a collective alarm. The LED indicates when power is on and also when the Teach-In func- tion is activated (blue), when the input signal is on (green) and when an alarm condition is activated (red).
The DRML1 is designed for
direct installation on NOVA22 solid- state relays (both panel mount PM22 series and DIN-rail mount DR22 series models), and its plastic enclo- sure provides IP20 level protection. The module is C-UL-US recognized and compliant with IEC 61000-4 (EMC) and IEC 60068-2 (shock and vibration) requirements as well as meeting CE low-voltage and RoHS
specifications. Contact: Crydom, Inc., 2745
Paseo de las Americas 5014, San
Diego, CA 92154 % 877-502-5500 fax: 619-210-1590 E-mail:
sales@crydom.com Web:
www.crydom.com
Load monitoring module for NOVA22 SSRs.
which monitors up to eight heating ele- ments with similar current value, for a total current ranging from 1.2-50A. The DRML1 module measures
the current value and compares it with a pre-set “teach” value, which is
Fujipoly Offers Fast Free TIM Samples
Carteret, NJ — Some of the most cumbersome steps in evaluating the performance of a thermal interface material (TIM) involve requesting product samples and receiving quotes. To eliminate this frustration, Fujipoly® has created an online suite of features that allow engineers to request free samples and quotes with the click of a mouse. The registration process takes
less than two minutes to complete and even allows users to create default shipping and billing loca- tions. The highly-rated “Request a Sample” feature guides engineers to
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