AnaLog's Temperature Log Related PCBs


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	Temperature Log Related Printed Circuit Boards (PCBs)


	AnaLog Services, Inc. is often asked to repair or upgrade temperature logging tools and surface equipment. Over the years, we have developed a series of printed circuit boards (PCBs) using some of the best elements of the many designs out there. Our Low Parts Count AD-537 based temperature tool VFC PCB is a marvel of simplicity and engineering elegance. We have remanufactured many old temperature tools, including the replacement of thermistor or diode temperature sensors with platinum resistance (RTD) detectors. The customer gets an essentially like-new superior temperature tool for a fraction of the cost of a new tool. All PCBs listed below use readily obtainable components, which parts will continue to be available for many years to come. Contact us if you have equipment needing an upgrade, or if you wish to obtain PCBs for your own project. Click on the links in the "PCB" column for photos and additional data on the boards.


	Temperature Tool Voltage to Frequency Converter (VFC) PCBs


	PCB


	Schematic


	Printed Circuit Board Description


	VFC-2 VFC-2 VFC-2b VFC-2e VFC-2n


	VFC2a.sch VFC2b.sch VFC2d.sch VFC2e.sch VFC2n.sch


	Low Parts Count AD537 Based VFC (Divider) 2" Mounting Low Parts Count AD537 Based VFC (Ref. Diode) 2" Mounting Low Parts Count AD537 Based VFC (Forced Ref.) 2" Mounting Low Parts Count AD537 Based VFC (Divider) 2" Mounting VFC-2 for One Inch Temperature Tools (Divider) 2" Mounting


	Low Voltage Power Supply PCBs


	106LVPS-1b 106LVPS-2b 106LVPS-3b 106LVPS-3n


	106LVPS1.sch 106LVPS2.sch 106LVPS3.sch 106LVPS3.sch


	Temp. Comp. Low Voltage Power Supply 2" Mounting Temp. Comp. Low Voltage Power Supply 2" Mounting Temp. Comp. LV, Low Current Power Supply 2" Mounting 106LVPS-3 for One Inch Temperature Tools 2" Mounting


	Line Driver / Pulse Former PCBs


	106LD-3c 106LD-3n 106LD-5c 106LD-7


	106LD3.sch 106LD3n.sch 106LD5.sch 106LD7.sch


	Dual Channel Pulse Former / Line Driver 3" Mounting 106LD-3 for One Inch Temperature Tools 4" Mounting Single Channel Pulse Former / Line Driver 3" Mounting Single Xistor Compact Line Driver 2" Mounting


	CCL Downhole Amplifier PCB


	106CCL-1b 106CCL-3b 106CCL-4c


	106CCL1.sch 106CCL3.sch 106CCL4.sch


	Downhole CCL Amplifier (TIP-120 Style) 2" Mounting Compact Cascode Downhole CCL Amplifier (GO Style) Downhole CCL Amplifier (SIE Style) 2" Mounting


	Downhole Switching PCBs


	DHSW-1 DHSW-3 DHSW-4


	DHSW1.sch DHSW3.sch DHSW4.sch


	Dual Coil Latching Relay Downhole Line Switch SPDT Non-Latching Relay / Transistor DH Line Switch SPDT Non-Latching Relay Downhole Line Switch

	Remanufactured SIE Temperature Tool with Platinum RTD Sensor and VFC-2, 106LD-3, and 106LVPS-3 PCBs

Also see PCB Details and Photographs and Selected Temperature Tool Photographs.

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05-29-08
Last 02-22-10